Switch to modules

25 files changed, 0 insertions, 13446 deletions

diff --git a/vendor/gopkg.in/gorp.v1/LICENSE b/vendor/gopkg.in/gorp.v1/LICENSE
deleted file mode 100644
index b661111..0000000
--- a/vendor/gopkg.in/gorp.v1/LICENSE
+++ /dev/null
@@ -1,22 +0,0 @@
-(The MIT License)
-
-Copyright (c) 2012 James Cooper <james@bitmechanic.com>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-'Software'), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/vendor/gopkg.in/gorp.v1/Makefile b/vendor/gopkg.in/gorp.v1/Makefile
deleted file mode 100644
index edf771c..0000000
--- a/vendor/gopkg.in/gorp.v1/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-include $(GOROOT)/src/Make.inc
-
-TARG    = github.com/coopernurse/gorp
-GOFILES = gorp.go dialect.go
-
-include $(GOROOT)/src/Make.pkg
\ No newline at end of file
diff --git a/vendor/gopkg.in/gorp.v1/README.md b/vendor/gopkg.in/gorp.v1/README.md
deleted file mode 100644
index c7cd5d8..0000000
--- a/vendor/gopkg.in/gorp.v1/README.md
+++ /dev/null
@@ -1,672 +0,0 @@
-# Go Relational Persistence
-
-[![build status](https://secure.travis-ci.org/go-gorp/gorp.png)](http://travis-ci.org/go-gorp/gorp)
-
-I hesitate to call gorp an ORM.  Go doesn't really have objects, at least
-not in the classic Smalltalk/Java sense.  There goes the "O".  gorp doesn't
-know anything about the relationships between your structs (at least not
-yet).  So the "R" is questionable too (but I use it in the name because,
-well, it seemed more clever).
-
-The "M" is alive and well.  Given some Go structs and a database, gorp
-should remove a fair amount of boilerplate busy-work from your code.
-
-I hope that gorp saves you time, minimizes the drudgery of getting data
-in and out of your database, and helps your code focus on algorithms,
-not infrastructure.
-
-* Bind struct fields to table columns via API or tag
-* Support for embedded structs
-* Support for transactions
-* Forward engineer db schema from structs (great for unit tests)
-* Pre/post insert/update/delete hooks
-* Automatically generate insert/update/delete statements for a struct
-* Automatic binding of auto increment PKs back to struct after insert
-* Delete by primary key(s)
-* Select by primary key(s)
-* Optional trace sql logging
-* Bind arbitrary SQL queries to a struct
-* Bind slice to SELECT query results without type assertions
-* Use positional or named bind parameters in custom SELECT queries
-* Optional optimistic locking using a version column (for update/deletes)
-
-## Installation
-
-    # install the library:
-    go get gopkg.in/gorp.v1
-    
-    // use in your .go code:
-    import (
-        "gopkg.in/gorp.v1"
-    )
-
-## Versioning
-
-This project provides a stable release (v1.x tags) and a bleeding edge codebase (master).
-
-`gopkg.in/gorp.v1` points to the latest v1.x tag. The API's for v1 are stable and shouldn't change. Development takes place at the master branch. Althought the code in master should always compile and test successfully, it might break API's. We aim to maintain backwards compatibility, but API's and behaviour might be changed to fix a bug. Also note that API's that are new in the master branch can change until released as v2.
-
-If you want to use bleeding edge, use `github.com/go-gorp/gorp` as import path.
-
-## API Documentation
-
-Full godoc output from the latest v1 release is available here:
-
-https://godoc.org/gopkg.in/gorp.v1
-
-For the latest code in master:
-
-https://godoc.org/github.com/go-gorp/gorp
-
-## Quickstart
-
-```go
-package main
-
-import (
-    "database/sql"
-    "gopkg.in/gorp.v1"
-    _ "github.com/mattn/go-sqlite3"
-    "log"
-    "time"
-)
-
-func main() {
-    // initialize the DbMap
-    dbmap := initDb()
-    defer dbmap.Db.Close()
-
-    // delete any existing rows
-    err := dbmap.TruncateTables()
-    checkErr(err, "TruncateTables failed")
-
-    // create two posts
-    p1 := newPost("Go 1.1 released!", "Lorem ipsum lorem ipsum")
-    p2 := newPost("Go 1.2 released!", "Lorem ipsum lorem ipsum")
-
-    // insert rows - auto increment PKs will be set properly after the insert
-    err = dbmap.Insert(&p1, &p2)
-    checkErr(err, "Insert failed")
-
-    // use convenience SelectInt
-    count, err := dbmap.SelectInt("select count(*) from posts")
-    checkErr(err, "select count(*) failed")
-    log.Println("Rows after inserting:", count)
-
-    // update a row
-    p2.Title = "Go 1.2 is better than ever"
-    count, err = dbmap.Update(&p2)
-    checkErr(err, "Update failed")
-    log.Println("Rows updated:", count)
-
-    // fetch one row - note use of "post_id" instead of "Id" since column is aliased
-    //
-    // Postgres users should use $1 instead of ? placeholders
-    // See 'Known Issues' below
-    //
-    err = dbmap.SelectOne(&p2, "select * from posts where post_id=?", p2.Id)
-    checkErr(err, "SelectOne failed")
-    log.Println("p2 row:", p2)
-
-    // fetch all rows
-    var posts []Post
-    _, err = dbmap.Select(&posts, "select * from posts order by post_id")
-    checkErr(err, "Select failed")
-    log.Println("All rows:")
-    for x, p := range posts {
-        log.Printf("    %d: %v\n", x, p)
-    }
-
-    // delete row by PK
-    count, err = dbmap.Delete(&p1)
-    checkErr(err, "Delete failed")
-    log.Println("Rows deleted:", count)
-
-    // delete row manually via Exec
-    _, err = dbmap.Exec("delete from posts where post_id=?", p2.Id)
-    checkErr(err, "Exec failed")
-
-    // confirm count is zero
-    count, err = dbmap.SelectInt("select count(*) from posts")
-    checkErr(err, "select count(*) failed")
-    log.Println("Row count - should be zero:", count)
-
-    log.Println("Done!")
-}
-
-type Post struct {
-    // db tag lets you specify the column name if it differs from the struct field
-    Id      int64 `db:"post_id"`
-    Created int64
-    Title   string
-    Body    string
-}
-
-func newPost(title, body string) Post {
-    return Post{
-        Created: time.Now().UnixNano(),
-        Title:   title,
-        Body:    body,
-    }
-}
-
-func initDb() *gorp.DbMap {
-    // connect to db using standard Go database/sql API
-    // use whatever database/sql driver you wish
-    db, err := sql.Open("sqlite3", "/tmp/post_db.bin")
-    checkErr(err, "sql.Open failed")
-
-    // construct a gorp DbMap
-    dbmap := &gorp.DbMap{Db: db, Dialect: gorp.SqliteDialect{}}
-
-    // add a table, setting the table name to 'posts' and
-    // specifying that the Id property is an auto incrementing PK
-    dbmap.AddTableWithName(Post{}, "posts").SetKeys(true, "Id")
-
-    // create the table. in a production system you'd generally
-    // use a migration tool, or create the tables via scripts
-    err = dbmap.CreateTablesIfNotExists()
-    checkErr(err, "Create tables failed")
-
-    return dbmap
-}
-
-func checkErr(err error, msg string) {
-    if err != nil {
-        log.Fatalln(msg, err)
-    }
-}
-```
-
-## Examples
-
-### Mapping structs to tables
-
-First define some types:
-
-```go
-type Invoice struct {
-    Id       int64
-    Created  int64
-    Updated  int64
-    Memo     string
-    PersonId int64
-}
-
-type Person struct {
-    Id      int64    
-    Created int64
-    Updated int64
-    FName   string
-    LName   string
-}
-
-// Example of using tags to alias fields to column names
-// The 'db' value is the column name
-//
-// A hyphen will cause gorp to skip this field, similar to the
-// Go json package.
-//
-// This is equivalent to using the ColMap methods:
-//
-//   table := dbmap.AddTableWithName(Product{}, "product")
-//   table.ColMap("Id").Rename("product_id")
-//   table.ColMap("Price").Rename("unit_price")
-//   table.ColMap("IgnoreMe").SetTransient(true)
-//
-type Product struct {
-    Id         int64     `db:"product_id"`
-    Price      int64     `db:"unit_price"`
-    IgnoreMe   string    `db:"-"`
-}
-```
-
-Then create a mapper, typically you'd do this one time at app startup:
-
-```go
-// connect to db using standard Go database/sql API
-// use whatever database/sql driver you wish
-db, err := sql.Open("mymysql", "tcp:localhost:3306*mydb/myuser/mypassword")
-
-// construct a gorp DbMap
-dbmap := &gorp.DbMap{Db: db, Dialect: gorp.MySQLDialect{"InnoDB", "UTF8"}}
-
-// register the structs you wish to use with gorp
-// you can also use the shorter dbmap.AddTable() if you 
-// don't want to override the table name
-//
-// SetKeys(true) means we have a auto increment primary key, which
-// will get automatically bound to your struct post-insert
-//
-t1 := dbmap.AddTableWithName(Invoice{}, "invoice_test").SetKeys(true, "Id")
-t2 := dbmap.AddTableWithName(Person{}, "person_test").SetKeys(true, "Id")
-t3 := dbmap.AddTableWithName(Product{}, "product_test").SetKeys(true, "Id")
-```
-
-### Struct Embedding
-
-gorp supports embedding structs.  For example:
-
-```go
-type Names struct {
-    FirstName string
-    LastName  string
-}
-
-type WithEmbeddedStruct struct {
-    Id int64
-    Names
-}
-
-es := &WithEmbeddedStruct{-1, Names{FirstName: "Alice", LastName: "Smith"}}
-err := dbmap.Insert(es)
-```
-
-See the `TestWithEmbeddedStruct` function in `gorp_test.go` for a full example.
-
-### Create/Drop Tables ###
-
-Automatically create / drop registered tables.  This is useful for unit tests
-but is entirely optional.  You can of course use gorp with tables created manually,
-or with a separate migration tool (like goose: https://bitbucket.org/liamstask/goose).
-
-```go
-// create all registered tables
-dbmap.CreateTables()
-
-// same as above, but uses "if not exists" clause to skip tables that are
-// already defined
-dbmap.CreateTablesIfNotExists()
-
-// drop
-dbmap.DropTables()
-```
-
-### SQL Logging
-
-Optionally you can pass in a logger to trace all SQL statements.
-I recommend enabling this initially while you're getting the feel for what
-gorp is doing on your behalf.
-
-Gorp defines a `GorpLogger` interface that Go's built in `log.Logger` satisfies.
-However, you can write your own `GorpLogger` implementation, or use a package such 
-as `glog` if you want more control over how statements are logged.
-
-```go
-// Will log all SQL statements + args as they are run
-// The first arg is a string prefix to prepend to all log messages
-dbmap.TraceOn("[gorp]", log.New(os.Stdout, "myapp:", log.Lmicroseconds)) 
-
-// Turn off tracing
-dbmap.TraceOff()
-```
-
-### Insert
-
-```go
-// Must declare as pointers so optional callback hooks
-// can operate on your data, not copies
-inv1 := &Invoice{0, 100, 200, "first order", 0}
-inv2 := &Invoice{0, 100, 200, "second order", 0}
-
-// Insert your rows
-err := dbmap.Insert(inv1, inv2)
-
-// Because we called SetKeys(true) on Invoice, the Id field
-// will be populated after the Insert() automatically
-fmt.Printf("inv1.Id=%d  inv2.Id=%d\n", inv1.Id, inv2.Id)
-```
-
-### Update
-
-Continuing the above example, use the `Update` method to modify an Invoice:
-
-```go
-// count is the # of rows updated, which should be 1 in this example
-count, err := dbmap.Update(inv1)
-```
-
-### Delete
-
-If you have primary key(s) defined for a struct, you can use the `Delete`
-method to remove rows:
-
-```go
-count, err := dbmap.Delete(inv1)
-```
-
-### Select by Key
-
-Use the `Get` method to fetch a single row by primary key.  It returns
-nil if no row is found.
-
-```go
-// fetch Invoice with Id=99
-obj, err := dbmap.Get(Invoice{}, 99)
-inv := obj.(*Invoice)
-```
-
-### Ad Hoc SQL
-
-#### SELECT
-
-`Select()` and `SelectOne()` provide a simple way to bind arbitrary queries to a slice
-or a single struct.
-
-```go
-// Select a slice - first return value is not needed when a slice pointer is passed to Select()
-var posts []Post
-_, err := dbmap.Select(&posts, "select * from post order by id")
-
-// You can also use primitive types
-var ids []string
-_, err := dbmap.Select(&ids, "select id from post")
-
-// Select a single row.
-// Returns an error if no row found, or if more than one row is found
-var post Post
-err := dbmap.SelectOne(&post, "select * from post where id=?", id)
-```
-
-Want to do joins?  Just write the SQL and the struct. gorp will bind them:
-
-```go
-// Define a type for your join
-// It *must* contain all the columns in your SELECT statement
-//
-// The names here should match the aliased column names you specify
-// in your SQL - no additional binding work required.  simple.
-//
-type InvoicePersonView struct {
-    InvoiceId   int64
-    PersonId    int64
-    Memo        string
-    FName       string
-}
-
-// Create some rows
-p1 := &Person{0, 0, 0, "bob", "smith"}
-dbmap.Insert(p1)
-
-// notice how we can wire up p1.Id to the invoice easily
-inv1 := &Invoice{0, 0, 0, "xmas order", p1.Id}
-dbmap.Insert(inv1)
-
-// Run your query
-query := "select i.Id InvoiceId, p.Id PersonId, i.Memo, p.FName " +
-	"from invoice_test i, person_test p " +
-	"where i.PersonId = p.Id"
-
-// pass a slice to Select()
-var list []InvoicePersonView
-_, err := dbmap.Select(&list, query)
-
-// this should test true
-expected := InvoicePersonView{inv1.Id, p1.Id, inv1.Memo, p1.FName}
-if reflect.DeepEqual(list[0], expected) {
-    fmt.Println("Woot! My join worked!")
-}
-```
-
-#### SELECT string or int64
-
-gorp provides a few convenience methods for selecting a single string or int64.
-
-```go
-// select single int64 from db (use $1 instead of ? for postgresql)
-i64, err := dbmap.SelectInt("select count(*) from foo where blah=?", blahVal)
-
-// select single string from db:
-s, err := dbmap.SelectStr("select name from foo where blah=?", blahVal)
-
-```
-
-#### Named bind parameters
-
-You may use a map or struct to bind parameters by name.  This is currently
-only supported in SELECT queries.
-
-```go
-_, err := dbm.Select(&dest, "select * from Foo where name = :name and age = :age", map[string]interface{}{
-  "name": "Rob", 
-  "age": 31,
-})
-```
-
-#### UPDATE / DELETE
-
-You can execute raw SQL if you wish.  Particularly good for batch operations.
-
-```go
-res, err := dbmap.Exec("delete from invoice_test where PersonId=?", 10)
-```
-
-### Transactions
-
-You can batch operations into a transaction:
-
-```go
-func InsertInv(dbmap *DbMap, inv *Invoice, per *Person) error {
-    // Start a new transaction
-    trans, err := dbmap.Begin()
-    if err != nil {
-        return err
-    }
-
-    trans.Insert(per)
-    inv.PersonId = per.Id
-    trans.Insert(inv)
-
-    // if the commit is successful, a nil error is returned
-    return trans.Commit()
-}
-```
-
-### Hooks
-
-Use hooks to update data before/after saving to the db. Good for timestamps:
-
-```go
-// implement the PreInsert and PreUpdate hooks
-func (i *Invoice) PreInsert(s gorp.SqlExecutor) error {
-    i.Created = time.Now().UnixNano()
-    i.Updated = i.Created
-    return nil
-}
-
-func (i *Invoice) PreUpdate(s gorp.SqlExecutor) error {
-    i.Updated = time.Now().UnixNano()
-    return nil
-}
-
-// You can use the SqlExecutor to cascade additional SQL
-// Take care to avoid cycles. gorp won't prevent them.
-//
-// Here's an example of a cascading delete
-//
-func (p *Person) PreDelete(s gorp.SqlExecutor) error {
-    query := "delete from invoice_test where PersonId=?"
-    err := s.Exec(query, p.Id); if err != nil {
-        return err
-    }
-    return nil
-}
-```
-
-Full list of hooks that you can implement:
-
-    PostGet
-    PreInsert
-    PostInsert
-    PreUpdate
-    PostUpdate
-    PreDelete
-    PostDelete
-    
-    All have the same signature.  for example:
-    
-    func (p *MyStruct) PostUpdate(s gorp.SqlExecutor) error
-    
-### Optimistic Locking
-
-gorp provides a simple optimistic locking feature, similar to Java's JPA, that
-will raise an error if you try to update/delete a row whose `version` column
-has a value different than the one in memory.  This provides a safe way to do
-"select then update" style operations without explicit read and write locks.
-
-```go
-// Version is an auto-incremented number, managed by gorp
-// If this property is present on your struct, update
-// operations will be constrained
-//
-// For example, say we defined Person as:
-
-type Person struct {
-    Id       int64
-    Created  int64
-    Updated  int64
-    FName    string
-    LName    string
-    
-    // automatically used as the Version col
-    // use table.SetVersionCol("columnName") to map a different
-    // struct field as the version field
-    Version  int64
-}
-
-p1 := &Person{0, 0, 0, "Bob", "Smith", 0}
-dbmap.Insert(p1)  // Version is now 1
-
-obj, err := dbmap.Get(Person{}, p1.Id)
-p2 := obj.(*Person)
-p2.LName = "Edwards"
-dbmap.Update(p2)  // Version is now 2
-
-p1.LName = "Howard"
-
-// Raises error because p1.Version == 1, which is out of date
-count, err := dbmap.Update(p1)
-_, ok := err.(gorp.OptimisticLockError)
-if ok {
-    // should reach this statement
-    
-    // in a real app you might reload the row and retry, or
-    // you might propegate this to the user, depending on the desired
-    // semantics
-    fmt.Printf("Tried to update row with stale data: %v\n", err)
-} else {
-    // some other db error occurred - log or return up the stack
-    fmt.Printf("Unknown db err: %v\n", err)
-}
-```
-
-## Database Drivers
-
-gorp uses the Go 1 `database/sql` package.  A full list of compliant drivers is available here:
-
-http://code.google.com/p/go-wiki/wiki/SQLDrivers
-
-Sadly, SQL databases differ on various issues. gorp provides a Dialect interface that should be
-implemented per database vendor.  Dialects are provided for:
-
-* MySQL
-* PostgreSQL
-* sqlite3
-
-Each of these three databases pass the test suite.  See `gorp_test.go` for example 
-DSNs for these three databases.
-
-Support is also provided for:
-
-* Oracle (contributed by @klaidliadon)
-* SQL Server (contributed by @qrawl) - use driver: github.com/denisenkom/go-mssqldb 
-
-Note that these databases are not covered by CI and I (@coopernurse) have no good way to
-test them locally.  So please try them and send patches as needed, but expect a bit more
-unpredicability.
-
-## Known Issues
-
-### SQL placeholder portability
-
-Different databases use different strings to indicate variable placeholders in 
-prepared SQL statements.  Unlike some database abstraction layers (such as JDBC),
-Go's `database/sql` does not standardize this.
-
-SQL generated by gorp in the `Insert`, `Update`, `Delete`, and `Get` methods delegates
-to a Dialect implementation for each database, and will generate portable SQL.
-
-Raw SQL strings passed to `Exec`, `Select`, `SelectOne`, `SelectInt`, etc will not be
-parsed.  Consequently you may have portability issues if you write a query like this:
-
-```go
-// works on MySQL and Sqlite3, but not with Postgresql
-err := dbmap.SelectOne(&val, "select * from foo where id = ?", 30)
-```
-
-In `Select` and `SelectOne` you can use named parameters to work around this.
-The following is portable:
-
-```go
-err := dbmap.SelectOne(&val, "select * from foo where id = :id", 
-   map[string]interface{} { "id": 30})
-```
-
-### time.Time and time zones
-
-gorp will pass `time.Time` fields through to the `database/sql` driver, but note that 
-the behavior of this type varies across database drivers.
-
-MySQL users should be especially cautious.  See: https://github.com/ziutek/mymysql/pull/77
-
-To avoid any potential issues with timezone/DST, consider using an integer field for time
-data and storing UNIX time.
-
-## Running the tests
-
-The included tests may be run against MySQL, Postgresql, or sqlite3.
-You must set two environment variables so the test code knows which driver to
-use, and how to connect to your database.
-
-```sh
-# MySQL example:
-export GORP_TEST_DSN=gomysql_test/gomysql_test/abc123
-export GORP_TEST_DIALECT=mysql
-
-# run the tests
-go test
-
-# run the tests and benchmarks
-go test -bench="Bench" -benchtime 10
-```
-
-Valid `GORP_TEST_DIALECT` values are: "mysql", "postgres", "sqlite3"
-See the `test_all.sh` script for examples of all 3 databases.  This is the script I run
-locally to test the library.
-
-## Performance
-
-gorp uses reflection to construct SQL queries and bind parameters.  See the BenchmarkNativeCrud vs BenchmarkGorpCrud in gorp_test.go for a simple perf test.  On my MacBook Pro gorp is about 2-3% slower than hand written SQL.
-
-## Help/Support
-
-IRC: #gorp
-Mailing list: gorp-dev@googlegroups.com
-Bugs/Enhancements: Create a github issue
-
-## Pull requests / Contributions
-
-Contributions are very welcome.  Please follow these guidelines:
-
-* Fork the `master` branch and issue pull requests targeting the `master` branch
-* If you are adding an enhancement, please open an issue first with your proposed change.
-* Changes that break backwards compatibility in the public API are only accepted after we
-  discuss on a GitHub issue for a while.
-
-Thanks!
-
-## Contributors
-
-* matthias-margush - column aliasing via tags
-* Rob Figueiredo - @robfig
-* Quinn Slack - @sqs
diff --git a/vendor/gopkg.in/gorp.v1/dialect.go b/vendor/gopkg.in/gorp.v1/dialect.go
deleted file mode 100644
index 5e8fdc6..0000000
--- a/vendor/gopkg.in/gorp.v1/dialect.go
+++ /dev/null
@@ -1,692 +0,0 @@
-package gorp
-
-import (
-	"errors"
-	"fmt"
-	"reflect"
-	"strings"
-)
-
-// The Dialect interface encapsulates behaviors that differ across
-// SQL databases.  At present the Dialect is only used by CreateTables()
-// but this could change in the future
-type Dialect interface {
-
-	// adds a suffix to any query, usually ";"
-	QuerySuffix() string
-
-	// ToSqlType returns the SQL column type to use when creating a
-	// table of the given Go Type.  maxsize can be used to switch based on
-	// size.  For example, in MySQL []byte could map to BLOB, MEDIUMBLOB,
-	// or LONGBLOB depending on the maxsize
-	ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string
-
-	// string to append to primary key column definitions
-	AutoIncrStr() string
-
-	// string to bind autoincrement columns to. Empty string will
-	// remove reference to those columns in the INSERT statement.
-	AutoIncrBindValue() string
-
-	AutoIncrInsertSuffix(col *ColumnMap) string
-
-	// string to append to "create table" statement for vendor specific
-	// table attributes
-	CreateTableSuffix() string
-
-	// string to truncate tables
-	TruncateClause() string
-
-	// bind variable string to use when forming SQL statements
-	// in many dbs it is "?", but Postgres appears to use $1
-	//
-	// i is a zero based index of the bind variable in this statement
-	//
-	BindVar(i int) string
-
-	// Handles quoting of a field name to ensure that it doesn't raise any
-	// SQL parsing exceptions by using a reserved word as a field name.
-	QuoteField(field string) string
-
-	// Handles building up of a schema.database string that is compatible with
-	// the given dialect
-	//
-	// schema - The schema that <table> lives in
-	// table - The table name
-	QuotedTableForQuery(schema string, table string) string
-
-	// Existance clause for table creation / deletion
-	IfSchemaNotExists(command, schema string) string
-	IfTableExists(command, schema, table string) string
-	IfTableNotExists(command, schema, table string) string
-}
-
-// IntegerAutoIncrInserter is implemented by dialects that can perform
-// inserts with automatically incremented integer primary keys.  If
-// the dialect can handle automatic assignment of more than just
-// integers, see TargetedAutoIncrInserter.
-type IntegerAutoIncrInserter interface {
-	InsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error)
-}
-
-// TargetedAutoIncrInserter is implemented by dialects that can
-// perform automatic assignment of any primary key type (i.e. strings
-// for uuids, integers for serials, etc).
-type TargetedAutoIncrInserter interface {
-	// InsertAutoIncrToTarget runs an insert operation and assigns the
-	// automatically generated primary key directly to the passed in
-	// target.  The target should be a pointer to the primary key
-	// field of the value being inserted.
-	InsertAutoIncrToTarget(exec SqlExecutor, insertSql string, target interface{}, params ...interface{}) error
-}
-
-func standardInsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error) {
-	res, err := exec.Exec(insertSql, params...)
-	if err != nil {
-		return 0, err
-	}
-	return res.LastInsertId()
-}
-
-///////////////////////////////////////////////////////
-// sqlite3 //
-/////////////
-
-type SqliteDialect struct {
-	suffix string
-}
-
-func (d SqliteDialect) QuerySuffix() string { return ";" }
-
-func (d SqliteDialect) ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string {
-	switch val.Kind() {
-	case reflect.Ptr:
-		return d.ToSqlType(val.Elem(), maxsize, isAutoIncr)
-	case reflect.Bool:
-		return "integer"
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		return "integer"
-	case reflect.Float64, reflect.Float32:
-		return "real"
-	case reflect.Slice:
-		if val.Elem().Kind() == reflect.Uint8 {
-			return "blob"
-		}
-	}
-
-	switch val.Name() {
-	case "NullInt64":
-		return "integer"
-	case "NullFloat64":
-		return "real"
-	case "NullBool":
-		return "integer"
-	case "Time":
-		return "datetime"
-	}
-
-	if maxsize < 1 {
-		maxsize = 255
-	}
-	return fmt.Sprintf("varchar(%d)", maxsize)
-}
-
-// Returns autoincrement
-func (d SqliteDialect) AutoIncrStr() string {
-	return "autoincrement"
-}
-
-func (d SqliteDialect) AutoIncrBindValue() string {
-	return "null"
-}
-
-func (d SqliteDialect) AutoIncrInsertSuffix(col *ColumnMap) string {
-	return ""
-}
-
-// Returns suffix
-func (d SqliteDialect) CreateTableSuffix() string {
-	return d.suffix
-}
-
-// With sqlite, there technically isn't a TRUNCATE statement,
-// but a DELETE FROM uses a truncate optimization:
-// http://www.sqlite.org/lang_delete.html
-func (d SqliteDialect) TruncateClause() string {
-	return "delete from"
-}
-
-// Returns "?"
-func (d SqliteDialect) BindVar(i int) string {
-	return "?"
-}
-
-func (d SqliteDialect) InsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error) {
-	return standardInsertAutoIncr(exec, insertSql, params...)
-}
-
-func (d SqliteDialect) QuoteField(f string) string {
-	return `"` + f + `"`
-}
-
-// sqlite does not have schemas like PostgreSQL does, so just escape it like normal
-func (d SqliteDialect) QuotedTableForQuery(schema string, table string) string {
-	return d.QuoteField(table)
-}
-
-func (d SqliteDialect) IfSchemaNotExists(command, schema string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-func (d SqliteDialect) IfTableExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if exists", command)
-}
-
-func (d SqliteDialect) IfTableNotExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-///////////////////////////////////////////////////////
-// PostgreSQL //
-////////////////
-
-type PostgresDialect struct {
-	suffix string
-}
-
-func (d PostgresDialect) QuerySuffix() string { return ";" }
-
-func (d PostgresDialect) ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string {
-	switch val.Kind() {
-	case reflect.Ptr:
-		return d.ToSqlType(val.Elem(), maxsize, isAutoIncr)
-	case reflect.Bool:
-		return "boolean"
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32:
-		if isAutoIncr {
-			return "serial"
-		}
-		return "integer"
-	case reflect.Int64, reflect.Uint64:
-		if isAutoIncr {
-			return "bigserial"
-		}
-		return "bigint"
-	case reflect.Float64:
-		return "double precision"
-	case reflect.Float32:
-		return "real"
-	case reflect.Slice:
-		if val.Elem().Kind() == reflect.Uint8 {
-			return "bytea"
-		}
-	}
-
-	switch val.Name() {
-	case "NullInt64":
-		return "bigint"
-	case "NullFloat64":
-		return "double precision"
-	case "NullBool":
-		return "boolean"
-	case "Time":
-		return "timestamp with time zone"
-	}
-
-	if maxsize > 0 {
-		return fmt.Sprintf("varchar(%d)", maxsize)
-	} else {
-		return "text"
-	}
-
-}
-
-// Returns empty string
-func (d PostgresDialect) AutoIncrStr() string {
-	return ""
-}
-
-func (d PostgresDialect) AutoIncrBindValue() string {
-	return "default"
-}
-
-func (d PostgresDialect) AutoIncrInsertSuffix(col *ColumnMap) string {
-	return " returning " + col.ColumnName
-}
-
-// Returns suffix
-func (d PostgresDialect) CreateTableSuffix() string {
-	return d.suffix
-}
-
-func (d PostgresDialect) TruncateClause() string {
-	return "truncate"
-}
-
-// Returns "$(i+1)"
-func (d PostgresDialect) BindVar(i int) string {
-	return fmt.Sprintf("$%d", i+1)
-}
-
-func (d PostgresDialect) InsertAutoIncrToTarget(exec SqlExecutor, insertSql string, target interface{}, params ...interface{}) error {
-	rows, err := exec.query(insertSql, params...)
-	if err != nil {
-		return err
-	}
-	defer rows.Close()
-
-	if rows.Next() {
-		err := rows.Scan(target)
-		return err
-	}
-
-	return errors.New("No serial value returned for insert: " + insertSql + " Encountered error: " + rows.Err().Error())
-}
-
-func (d PostgresDialect) QuoteField(f string) string {
-	return `"` + strings.ToLower(f) + `"`
-}
-
-func (d PostgresDialect) QuotedTableForQuery(schema string, table string) string {
-	if strings.TrimSpace(schema) == "" {
-		return d.QuoteField(table)
-	}
-
-	return schema + "." + d.QuoteField(table)
-}
-
-func (d PostgresDialect) IfSchemaNotExists(command, schema string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-func (d PostgresDialect) IfTableExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if exists", command)
-}
-
-func (d PostgresDialect) IfTableNotExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-///////////////////////////////////////////////////////
-// MySQL //
-///////////
-
-// Implementation of Dialect for MySQL databases.
-type MySQLDialect struct {
-
-	// Engine is the storage engine to use "InnoDB" vs "MyISAM" for example
-	Engine string
-
-	// Encoding is the character encoding to use for created tables
-	Encoding string
-}
-
-func (d MySQLDialect) QuerySuffix() string { return ";" }
-
-func (d MySQLDialect) ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string {
-	switch val.Kind() {
-	case reflect.Ptr:
-		return d.ToSqlType(val.Elem(), maxsize, isAutoIncr)
-	case reflect.Bool:
-		return "boolean"
-	case reflect.Int8:
-		return "tinyint"
-	case reflect.Uint8:
-		return "tinyint unsigned"
-	case reflect.Int16:
-		return "smallint"
-	case reflect.Uint16:
-		return "smallint unsigned"
-	case reflect.Int, reflect.Int32:
-		return "int"
-	case reflect.Uint, reflect.Uint32:
-		return "int unsigned"
-	case reflect.Int64:
-		return "bigint"
-	case reflect.Uint64:
-		return "bigint unsigned"
-	case reflect.Float64, reflect.Float32:
-		return "double"
-	case reflect.Slice:
-		if val.Elem().Kind() == reflect.Uint8 {
-			return "mediumblob"
-		}
-	}
-
-	switch val.Name() {
-	case "NullInt64":
-		return "bigint"
-	case "NullFloat64":
-		return "double"
-	case "NullBool":
-		return "tinyint"
-	case "Time":
-		return "datetime"
-	}
-
-	if maxsize < 1 {
-		maxsize = 255
-	}
-	return fmt.Sprintf("varchar(%d)", maxsize)
-}
-
-// Returns auto_increment
-func (d MySQLDialect) AutoIncrStr() string {
-	return "auto_increment"
-}
-
-func (d MySQLDialect) AutoIncrBindValue() string {
-	return "null"
-}
-
-func (d MySQLDialect) AutoIncrInsertSuffix(col *ColumnMap) string {
-	return ""
-}
-
-// Returns engine=%s charset=%s  based on values stored on struct
-func (d MySQLDialect) CreateTableSuffix() string {
-	if d.Engine == "" || d.Encoding == "" {
-		msg := "gorp - undefined"
-
-		if d.Engine == "" {
-			msg += " MySQLDialect.Engine"
-		}
-		if d.Engine == "" && d.Encoding == "" {
-			msg += ","
-		}
-		if d.Encoding == "" {
-			msg += " MySQLDialect.Encoding"
-		}
-		msg += ". Check that your MySQLDialect was correctly initialized when declared."
-		panic(msg)
-	}
-
-	return fmt.Sprintf(" engine=%s charset=%s", d.Engine, d.Encoding)
-}
-
-func (d MySQLDialect) TruncateClause() string {
-	return "truncate"
-}
-
-// Returns "?"
-func (d MySQLDialect) BindVar(i int) string {
-	return "?"
-}
-
-func (d MySQLDialect) InsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error) {
-	return standardInsertAutoIncr(exec, insertSql, params...)
-}
-
-func (d MySQLDialect) QuoteField(f string) string {
-	return "`" + f + "`"
-}
-
-func (d MySQLDialect) QuotedTableForQuery(schema string, table string) string {
-	if strings.TrimSpace(schema) == "" {
-		return d.QuoteField(table)
-	}
-
-	return schema + "." + d.QuoteField(table)
-}
-
-func (d MySQLDialect) IfSchemaNotExists(command, schema string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-func (d MySQLDialect) IfTableExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if exists", command)
-}
-
-func (d MySQLDialect) IfTableNotExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-///////////////////////////////////////////////////////
-// Sql Server //
-////////////////
-
-// Implementation of Dialect for Microsoft SQL Server databases.
-// Tested on SQL Server 2008 with driver: github.com/denisenkom/go-mssqldb
-
-type SqlServerDialect struct {
-	suffix string
-}
-
-func (d SqlServerDialect) ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string {
-	switch val.Kind() {
-	case reflect.Ptr:
-		return d.ToSqlType(val.Elem(), maxsize, isAutoIncr)
-	case reflect.Bool:
-		return "bit"
-	case reflect.Int8:
-		return "tinyint"
-	case reflect.Uint8:
-		return "smallint"
-	case reflect.Int16:
-		return "smallint"
-	case reflect.Uint16:
-		return "int"
-	case reflect.Int, reflect.Int32:
-		return "int"
-	case reflect.Uint, reflect.Uint32:
-		return "bigint"
-	case reflect.Int64:
-		return "bigint"
-	case reflect.Uint64:
-		return "bigint"
-	case reflect.Float32:
-		return "real"
-	case reflect.Float64:
-		return "float(53)"
-	case reflect.Slice:
-		if val.Elem().Kind() == reflect.Uint8 {
-			return "varbinary"
-		}
-	}
-
-	switch val.Name() {
-	case "NullInt64":
-		return "bigint"
-	case "NullFloat64":
-		return "float(53)"
-	case "NullBool":
-		return "tinyint"
-	case "Time":
-		return "datetime"
-	}
-
-	if maxsize < 1 {
-		maxsize = 255
-	}
-	return fmt.Sprintf("varchar(%d)", maxsize)
-}
-
-// Returns auto_increment
-func (d SqlServerDialect) AutoIncrStr() string {
-	return "identity(0,1)"
-}
-
-// Empty string removes autoincrement columns from the INSERT statements.
-func (d SqlServerDialect) AutoIncrBindValue() string {
-	return ""
-}
-
-func (d SqlServerDialect) AutoIncrInsertSuffix(col *ColumnMap) string {
-	return ""
-}
-
-// Returns suffix
-func (d SqlServerDialect) CreateTableSuffix() string {
-
-	return d.suffix
-}
-
-func (d SqlServerDialect) TruncateClause() string {
-	return "delete from"
-}
-
-// Returns "?"
-func (d SqlServerDialect) BindVar(i int) string {
-	return "?"
-}
-
-func (d SqlServerDialect) InsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error) {
-	return standardInsertAutoIncr(exec, insertSql, params...)
-}
-
-func (d SqlServerDialect) QuoteField(f string) string {
-	return `"` + f + `"`
-}
-
-func (d SqlServerDialect) QuotedTableForQuery(schema string, table string) string {
-	if strings.TrimSpace(schema) == "" {
-		return table
-	}
-	return schema + "." + table
-}
-
-func (d SqlServerDialect) QuerySuffix() string { return ";" }
-
-func (d SqlServerDialect) IfSchemaNotExists(command, schema string) string {
-	s := fmt.Sprintf("if not exists (select name from sys.schemas where name = '%s') %s", schema, command)
-	return s
-}
-
-func (d SqlServerDialect) IfTableExists(command, schema, table string) string {
-	var schema_clause string
-	if strings.TrimSpace(schema) != "" {
-		schema_clause = fmt.Sprintf("table_schema = '%s' and ", schema)
-	}
-	s := fmt.Sprintf("if exists (select * from information_schema.tables where %stable_name = '%s') %s", schema_clause, table, command)
-	return s
-}
-
-func (d SqlServerDialect) IfTableNotExists(command, schema, table string) string {
-	var schema_clause string
-	if strings.TrimSpace(schema) != "" {
-		schema_clause = fmt.Sprintf("table_schema = '%s' and ", schema)
-	}
-	s := fmt.Sprintf("if not exists (select * from information_schema.tables where %stable_name = '%s') %s", schema_clause, table, command)
-	return s
-}
-
-///////////////////////////////////////////////////////
-// Oracle //
-///////////
-
-// Implementation of Dialect for Oracle databases.
-type OracleDialect struct{}
-
-func (d OracleDialect) QuerySuffix() string { return "" }
-
-func (d OracleDialect) ToSqlType(val reflect.Type, maxsize int, isAutoIncr bool) string {
-	switch val.Kind() {
-	case reflect.Ptr:
-		return d.ToSqlType(val.Elem(), maxsize, isAutoIncr)
-	case reflect.Bool:
-		return "boolean"
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32:
-		if isAutoIncr {
-			return "serial"
-		}
-		return "integer"
-	case reflect.Int64, reflect.Uint64:
-		if isAutoIncr {
-			return "bigserial"
-		}
-		return "bigint"
-	case reflect.Float64:
-		return "double precision"
-	case reflect.Float32:
-		return "real"
-	case reflect.Slice:
-		if val.Elem().Kind() == reflect.Uint8 {
-			return "bytea"
-		}
-	}
-
-	switch val.Name() {
-	case "NullInt64":
-		return "bigint"
-	case "NullFloat64":
-		return "double precision"
-	case "NullBool":
-		return "boolean"
-	case "NullTime", "Time":
-		return "timestamp with time zone"
-	}
-
-	if maxsize > 0 {
-		return fmt.Sprintf("varchar(%d)", maxsize)
-	} else {
-		return "text"
-	}
-
-}
-
-// Returns empty string
-func (d OracleDialect) AutoIncrStr() string {
-	return ""
-}
-
-func (d OracleDialect) AutoIncrBindValue() string {
-	return "default"
-}
-
-func (d OracleDialect) AutoIncrInsertSuffix(col *ColumnMap) string {
-	return " returning " + col.ColumnName
-}
-
-// Returns suffix
-func (d OracleDialect) CreateTableSuffix() string {
-	return ""
-}
-
-func (d OracleDialect) TruncateClause() string {
-	return "truncate"
-}
-
-// Returns "$(i+1)"
-func (d OracleDialect) BindVar(i int) string {
-	return fmt.Sprintf(":%d", i+1)
-}
-
-func (d OracleDialect) InsertAutoIncr(exec SqlExecutor, insertSql string, params ...interface{}) (int64, error) {
-	rows, err := exec.query(insertSql, params...)
-	if err != nil {
-		return 0, err
-	}
-	defer rows.Close()
-
-	if rows.Next() {
-		var id int64
-		err := rows.Scan(&id)
-		return id, err
-	}
-
-	return 0, errors.New("No serial value returned for insert: " + insertSql + " Encountered error: " + rows.Err().Error())
-}
-
-func (d OracleDialect) QuoteField(f string) string {
-	return `"` + strings.ToUpper(f) + `"`
-}
-
-func (d OracleDialect) QuotedTableForQuery(schema string, table string) string {
-	if strings.TrimSpace(schema) == "" {
-		return d.QuoteField(table)
-	}
-
-	return schema + "." + d.QuoteField(table)
-}
-
-func (d OracleDialect) IfSchemaNotExists(command, schema string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
-
-func (d OracleDialect) IfTableExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if exists", command)
-}
-
-func (d OracleDialect) IfTableNotExists(command, schema, table string) string {
-	return fmt.Sprintf("%s if not exists", command)
-}
diff --git a/vendor/gopkg.in/gorp.v1/errors.go b/vendor/gopkg.in/gorp.v1/errors.go
deleted file mode 100644
index 356d684..0000000
--- a/vendor/gopkg.in/gorp.v1/errors.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package gorp
-
-import (
-	"fmt"
-)
-
-// A non-fatal error, when a select query returns columns that do not exist
-// as fields in the struct it is being mapped to
-type NoFieldInTypeError struct {
-	TypeName        string
-	MissingColNames []string
-}
-
-func (err *NoFieldInTypeError) Error() string {
-	return fmt.Sprintf("gorp: No fields %+v in type %s", err.MissingColNames, err.TypeName)
-}
-
-// returns true if the error is non-fatal (ie, we shouldn't immediately return)
-func NonFatalError(err error) bool {
-	switch err.(type) {
-	case *NoFieldInTypeError:
-		return true
-	default:
-		return false
-	}
-}
diff --git a/vendor/gopkg.in/gorp.v1/gorp.go b/vendor/gopkg.in/gorp.v1/gorp.go
deleted file mode 100644
index 1ad6187..0000000
--- a/vendor/gopkg.in/gorp.v1/gorp.go
+++ /dev/null
@@ -1,2085 +0,0 @@
-// Copyright 2012 James Cooper. All rights reserved.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-
-// Package gorp provides a simple way to marshal Go structs to and from
-// SQL databases.  It uses the database/sql package, and should work with any
-// compliant database/sql driver.
-//
-// Source code and project home:
-// https://github.com/coopernurse/gorp
-//
-package gorp
-
-import (
-	"bytes"
-	"database/sql"
-	"database/sql/driver"
-	"errors"
-	"fmt"
-	"reflect"
-	"regexp"
-	"strings"
-	"time"
-	"log"
-	"os"
-)
-
-// Oracle String (empty string is null)
-type OracleString struct {
-	sql.NullString
-}
-
-// Scan implements the Scanner interface.
-func (os *OracleString) Scan(value interface{}) error {
-	if value == nil {
-		os.String, os.Valid = "", false
-		return nil
-	}
-	os.Valid = true
-	return os.NullString.Scan(value)
-}
-
-// Value implements the driver Valuer interface.
-func (os OracleString) Value() (driver.Value, error) {
-	if !os.Valid || os.String == "" {
-		return nil, nil
-	}
-	return os.String, nil
-}
-
-// A nullable Time value
-type NullTime struct {
-	Time  time.Time
-	Valid bool // Valid is true if Time is not NULL
-}
-
-// Scan implements the Scanner interface.
-func (nt *NullTime) Scan(value interface{}) error {
-	nt.Time, nt.Valid = value.(time.Time)
-	return nil
-}
-
-// Value implements the driver Valuer interface.
-func (nt NullTime) Value() (driver.Value, error) {
-	if !nt.Valid {
-		return nil, nil
-	}
-	return nt.Time, nil
-}
-
-var zeroVal reflect.Value
-var versFieldConst = "[gorp_ver_field]"
-
-// OptimisticLockError is returned by Update() or Delete() if the
-// struct being modified has a Version field and the value is not equal to
-// the current value in the database
-type OptimisticLockError struct {
-	// Table name where the lock error occurred
-	TableName string
-
-	// Primary key values of the row being updated/deleted
-	Keys []interface{}
-
-	// true if a row was found with those keys, indicating the
-	// LocalVersion is stale.  false if no value was found with those
-	// keys, suggesting the row has been deleted since loaded, or
-	// was never inserted to begin with
-	RowExists bool
-
-	// Version value on the struct passed to Update/Delete. This value is
-	// out of sync with the database.
-	LocalVersion int64
-}
-
-// Error returns a description of the cause of the lock error
-func (e OptimisticLockError) Error() string {
-	if e.RowExists {
-		return fmt.Sprintf("gorp: OptimisticLockError table=%s keys=%v out of date version=%d", e.TableName, e.Keys, e.LocalVersion)
-	}
-
-	return fmt.Sprintf("gorp: OptimisticLockError no row found for table=%s keys=%v", e.TableName, e.Keys)
-}
-
-// The TypeConverter interface provides a way to map a value of one
-// type to another type when persisting to, or loading from, a database.
-//
-// Example use cases: Implement type converter to convert bool types to "y"/"n" strings,
-// or serialize a struct member as a JSON blob.
-type TypeConverter interface {
-	// ToDb converts val to another type. Called before INSERT/UPDATE operations
-	ToDb(val interface{}) (interface{}, error)
-
-	// FromDb returns a CustomScanner appropriate for this type. This will be used
-	// to hold values returned from SELECT queries.
-	//
-	// In particular the CustomScanner returned should implement a Binder
-	// function appropriate for the Go type you wish to convert the db value to
-	//
-	// If bool==false, then no custom scanner will be used for this field.
-	FromDb(target interface{}) (CustomScanner, bool)
-}
-
-// CustomScanner binds a database column value to a Go type
-type CustomScanner struct {
-	// After a row is scanned, Holder will contain the value from the database column.
-	// Initialize the CustomScanner with the concrete Go type you wish the database
-	// driver to scan the raw column into.
-	Holder interface{}
-	// Target typically holds a pointer to the target struct field to bind the Holder
-	// value to.
-	Target interface{}
-	// Binder is a custom function that converts the holder value to the target type
-	// and sets target accordingly.  This function should return error if a problem
-	// occurs converting the holder to the target.
-	Binder func(holder interface{}, target interface{}) error
-}
-
-// Bind is called automatically by gorp after Scan()
-func (me CustomScanner) Bind() error {
-	return me.Binder(me.Holder, me.Target)
-}
-
-// DbMap is the root gorp mapping object. Create one of these for each
-// database schema you wish to map.  Each DbMap contains a list of
-// mapped tables.
-//
-// Example:
-//
-//     dialect := gorp.MySQLDialect{"InnoDB", "UTF8"}
-//     dbmap := &gorp.DbMap{Db: db, Dialect: dialect}
-//
-type DbMap struct {
-	// Db handle to use with this map
-	Db *sql.DB
-
-	// Dialect implementation to use with this map
-	Dialect Dialect
-
-	TypeConverter TypeConverter
-
-	tables    []*TableMap
-	logger    GorpLogger
-	logPrefix string
-}
-
-// TableMap represents a mapping between a Go struct and a database table
-// Use dbmap.AddTable() or dbmap.AddTableWithName() to create these
-type TableMap struct {
-	// Name of database table.
-	TableName      string
-	SchemaName     string
-	gotype         reflect.Type
-	Columns        []*ColumnMap
-	keys           []*ColumnMap
-	uniqueTogether [][]string
-	version        *ColumnMap
-	insertPlan     bindPlan
-	updatePlan     bindPlan
-	deletePlan     bindPlan
-	getPlan        bindPlan
-	dbmap          *DbMap
-}
-
-// ResetSql removes cached insert/update/select/delete SQL strings
-// associated with this TableMap.  Call this if you've modified
-// any column names or the table name itself.
-func (t *TableMap) ResetSql() {
-	t.insertPlan = bindPlan{}
-	t.updatePlan = bindPlan{}
-	t.deletePlan = bindPlan{}
-	t.getPlan = bindPlan{}
-}
-
-// SetKeys lets you specify the fields on a struct that map to primary
-// key columns on the table.  If isAutoIncr is set, result.LastInsertId()
-// will be used after INSERT to bind the generated id to the Go struct.
-//
-// Automatically calls ResetSql() to ensure SQL statements are regenerated.
-//
-// Panics if isAutoIncr is true, and fieldNames length != 1
-//
-func (t *TableMap) SetKeys(isAutoIncr bool, fieldNames ...string) *TableMap {
-	if isAutoIncr && len(fieldNames) != 1 {
-		panic(fmt.Sprintf(
-			"gorp: SetKeys: fieldNames length must be 1 if key is auto-increment. (Saw %v fieldNames)",
-			len(fieldNames)))
-	}
-	t.keys = make([]*ColumnMap, 0)
-	for _, name := range fieldNames {
-		colmap := t.ColMap(name)
-		colmap.isPK = true
-		colmap.isAutoIncr = isAutoIncr
-		t.keys = append(t.keys, colmap)
-	}
-	t.ResetSql()
-
-	return t
-}
-
-// SetUniqueTogether lets you specify uniqueness constraints across multiple
-// columns on the table. Each call adds an additional constraint for the
-// specified columns.
-//
-// Automatically calls ResetSql() to ensure SQL statements are regenerated.
-//
-// Panics if fieldNames length < 2.
-//
-func (t *TableMap) SetUniqueTogether(fieldNames ...string) *TableMap {
-	if len(fieldNames) < 2 {
-		panic(fmt.Sprintf(
-			"gorp: SetUniqueTogether: must provide at least two fieldNames to set uniqueness constraint."))
-	}
-
-	columns := make([]string, 0)
-	for _, name := range fieldNames {
-		columns = append(columns, name)
-	}
-	t.uniqueTogether = append(t.uniqueTogether, columns)
-	t.ResetSql()
-
-	return t
-}
-
-// ColMap returns the ColumnMap pointer matching the given struct field
-// name.  It panics if the struct does not contain a field matching this
-// name.
-func (t *TableMap) ColMap(field string) *ColumnMap {
-	col := colMapOrNil(t, field)
-	if col == nil {
-		e := fmt.Sprintf("No ColumnMap in table %s type %s with field %s",
-			t.TableName, t.gotype.Name(), field)
-
-		panic(e)
-	}
-	return col
-}
-
-func colMapOrNil(t *TableMap, field string) *ColumnMap {
-	for _, col := range t.Columns {
-		if col.fieldName == field || col.ColumnName == field {
-			return col
-		}
-	}
-	return nil
-}
-
-// SetVersionCol sets the column to use as the Version field.  By default
-// the "Version" field is used.  Returns the column found, or panics
-// if the struct does not contain a field matching this name.
-//
-// Automatically calls ResetSql() to ensure SQL statements are regenerated.
-func (t *TableMap) SetVersionCol(field string) *ColumnMap {
-	c := t.ColMap(field)
-	t.version = c
-	t.ResetSql()
-	return c
-}
-
-type bindPlan struct {
-	query             string
-	argFields         []string
-	keyFields         []string
-	versField         string
-	autoIncrIdx       int
-	autoIncrFieldName string
-}
-
-func (plan bindPlan) createBindInstance(elem reflect.Value, conv TypeConverter) (bindInstance, error) {
-	bi := bindInstance{query: plan.query, autoIncrIdx: plan.autoIncrIdx, autoIncrFieldName: plan.autoIncrFieldName, versField: plan.versField}
-	if plan.versField != "" {
-		bi.existingVersion = elem.FieldByName(plan.versField).Int()
-	}
-
-	var err error
-
-	for i := 0; i < len(plan.argFields); i++ {
-		k := plan.argFields[i]
-		if k == versFieldConst {
-			newVer := bi.existingVersion + 1
-			bi.args = append(bi.args, newVer)
-			if bi.existingVersion == 0 {
-				elem.FieldByName(plan.versField).SetInt(int64(newVer))
-			}
-		} else {
-			val := elem.FieldByName(k).Interface()
-			if conv != nil {
-				val, err = conv.ToDb(val)
-				if err != nil {
-					return bindInstance{}, err
-				}
-			}
-			bi.args = append(bi.args, val)
-		}
-	}
-
-	for i := 0; i < len(plan.keyFields); i++ {
-		k := plan.keyFields[i]
-		val := elem.FieldByName(k).Interface()
-		if conv != nil {
-			val, err = conv.ToDb(val)
-			if err != nil {
-				return bindInstance{}, err
-			}
-		}
-		bi.keys = append(bi.keys, val)
-	}
-
-	return bi, nil
-}
-
-type bindInstance struct {
-	query             string
-	args              []interface{}
-	keys              []interface{}
-	existingVersion   int64
-	versField         string
-	autoIncrIdx       int
-	autoIncrFieldName string
-}
-
-func (t *TableMap) bindInsert(elem reflect.Value) (bindInstance, error) {
-	plan := t.insertPlan
-	if plan.query == "" {
-		plan.autoIncrIdx = -1
-
-		s := bytes.Buffer{}
-		s2 := bytes.Buffer{}
-		s.WriteString(fmt.Sprintf("insert into %s (", t.dbmap.Dialect.QuotedTableForQuery(t.SchemaName, t.TableName)))
-
-		x := 0
-		first := true
-		for y := range t.Columns {
-			col := t.Columns[y]
-			if !(col.isAutoIncr && t.dbmap.Dialect.AutoIncrBindValue() == "") {
-				if !col.Transient {
-					if !first {
-						s.WriteString(",")
-						s2.WriteString(",")
-					}
-					s.WriteString(t.dbmap.Dialect.QuoteField(col.ColumnName))
-
-					if col.isAutoIncr {
-						s2.WriteString(t.dbmap.Dialect.AutoIncrBindValue())
-						plan.autoIncrIdx = y
-						plan.autoIncrFieldName = col.fieldName
-					} else {
-						s2.WriteString(t.dbmap.Dialect.BindVar(x))
-						if col == t.version {
-							plan.versField = col.fieldName
-							plan.argFields = append(plan.argFields, versFieldConst)
-						} else {
-							plan.argFields = append(plan.argFields, col.fieldName)
-						}
-
-						x++
-					}
-					first = false
-				}
-			} else {
-				plan.autoIncrIdx = y
-				plan.autoIncrFieldName = col.fieldName
-			}
-		}
-		s.WriteString(") values (")
-		s.WriteString(s2.String())
-		s.WriteString(")")
-		if plan.autoIncrIdx > -1 {
-			s.WriteString(t.dbmap.Dialect.AutoIncrInsertSuffix(t.Columns[plan.autoIncrIdx]))
-		}
-		s.WriteString(t.dbmap.Dialect.QuerySuffix())
-
-		plan.query = s.String()
-		t.insertPlan = plan
-	}
-
-	return plan.createBindInstance(elem, t.dbmap.TypeConverter)
-}
-
-func (t *TableMap) bindUpdate(elem reflect.Value) (bindInstance, error) {
-	plan := t.updatePlan
-	if plan.query == "" {
-
-		s := bytes.Buffer{}
-		s.WriteString(fmt.Sprintf("update %s set ", t.dbmap.Dialect.QuotedTableForQuery(t.SchemaName, t.TableName)))
-		x := 0
-
-		for y := range t.Columns {
-			col := t.Columns[y]
-			if !col.isAutoIncr && !col.Transient {
-				if x > 0 {
-					s.WriteString(", ")
-				}
-				s.WriteString(t.dbmap.Dialect.QuoteField(col.ColumnName))
-				s.WriteString("=")
-				s.WriteString(t.dbmap.Dialect.BindVar(x))
-
-				if col == t.version {
-					plan.versField = col.fieldName
-					plan.argFields = append(plan.argFields, versFieldConst)
-				} else {
-					plan.argFields = append(plan.argFields, col.fieldName)
-				}
-				x++
-			}
-		}
-
-		s.WriteString(" where ")
-		for y := range t.keys {
-			col := t.keys[y]
-			if y > 0 {
-				s.WriteString(" and ")
-			}
-			s.WriteString(t.dbmap.Dialect.QuoteField(col.ColumnName))
-			s.WriteString("=")
-			s.WriteString(t.dbmap.Dialect.BindVar(x))
-
-			plan.argFields = append(plan.argFields, col.fieldName)
-			plan.keyFields = append(plan.keyFields, col.fieldName)
-			x++
-		}
-		if plan.versField != "" {
-			s.WriteString(" and ")
-			s.WriteString(t.dbmap.Dialect.QuoteField(t.version.ColumnName))
-			s.WriteString("=")
-			s.WriteString(t.dbmap.Dialect.BindVar(x))
-			plan.argFields = append(plan.argFields, plan.versField)
-		}
-		s.WriteString(t.dbmap.Dialect.QuerySuffix())
-
-		plan.query = s.String()
-		t.updatePlan = plan
-	}
-
-	return plan.createBindInstance(elem, t.dbmap.TypeConverter)
-}
-
-func (t *TableMap) bindDelete(elem reflect.Value) (bindInstance, error) {
-	plan := t.deletePlan
-	if plan.query == "" {
-
-		s := bytes.Buffer{}
-		s.WriteString(fmt.Sprintf("delete from %s", t.dbmap.Dialect.QuotedTableForQuery(t.SchemaName, t.TableName)))
-
-		for y := range t.Columns {
-			col := t.Columns[y]
-			if !col.Transient {
-				if col == t.version {
-					plan.versField = col.fieldName
-				}
-			}
-		}
-
-		s.WriteString(" where ")
-		for x := range t.keys {
-			k := t.keys[x]
-			if x > 0 {
-				s.WriteString(" and ")
-			}
-			s.WriteString(t.dbmap.Dialect.QuoteField(k.ColumnName))
-			s.WriteString("=")
-			s.WriteString(t.dbmap.Dialect.BindVar(x))
-
-			plan.keyFields = append(plan.keyFields, k.fieldName)
-			plan.argFields = append(plan.argFields, k.fieldName)
-		}
-		if plan.versField != "" {
-			s.WriteString(" and ")
-			s.WriteString(t.dbmap.Dialect.QuoteField(t.version.ColumnName))
-			s.WriteString("=")
-			s.WriteString(t.dbmap.Dialect.BindVar(len(plan.argFields)))
-
-			plan.argFields = append(plan.argFields, plan.versField)
-		}
-		s.WriteString(t.dbmap.Dialect.QuerySuffix())
-
-		plan.query = s.String()
-		t.deletePlan = plan
-	}
-
-	return plan.createBindInstance(elem, t.dbmap.TypeConverter)
-}
-
-func (t *TableMap) bindGet() bindPlan {
-	plan := t.getPlan
-	if plan.query == "" {
-
-		s := bytes.Buffer{}
-		s.WriteString("select ")
-
-		x := 0
-		for _, col := range t.Columns {
-			if !col.Transient {
-				if x > 0 {
-					s.WriteString(",")
-				}
-				s.WriteString(t.dbmap.Dialect.QuoteField(col.ColumnName))
-				plan.argFields = append(plan.argFields, col.fieldName)
-				x++
-			}
-		}
-		s.WriteString(" from ")
-		s.WriteString(t.dbmap.Dialect.QuotedTableForQuery(t.SchemaName, t.TableName))
-		s.WriteString(" where ")
-		for x := range t.keys {
-			col := t.keys[x]
-			if x > 0 {
-				s.WriteString(" and ")
-			}
-			s.WriteString(t.dbmap.Dialect.QuoteField(col.ColumnName))
-			s.WriteString("=")
-			s.WriteString(t.dbmap.Dialect.BindVar(x))
-
-			plan.keyFields = append(plan.keyFields, col.fieldName)
-		}
-		s.WriteString(t.dbmap.Dialect.QuerySuffix())
-
-		plan.query = s.String()
-		t.getPlan = plan
-	}
-
-	return plan
-}
-
-// ColumnMap represents a mapping between a Go struct field and a single
-// column in a table.
-// Unique and MaxSize only inform the
-// CreateTables() function and are not used by Insert/Update/Delete/Get.
-type ColumnMap struct {
-	// Column name in db table
-	ColumnName string
-
-	// If true, this column is skipped in generated SQL statements
-	Transient bool
-
-	// If true, " unique" is added to create table statements.
-	// Not used elsewhere
-	Unique bool
-
-	// Passed to Dialect.ToSqlType() to assist in informing the
-	// correct column type to map to in CreateTables()
-	// Not used elsewhere
-	MaxSize int
-
-	fieldName  string
-	gotype     reflect.Type
-	isPK       bool
-	isAutoIncr bool
-	isNotNull  bool
-}
-
-// Rename allows you to specify the column name in the table
-//
-// Example:  table.ColMap("Updated").Rename("date_updated")
-//
-func (c *ColumnMap) Rename(colname string) *ColumnMap {
-	c.ColumnName = colname
-	return c
-}
-
-// SetTransient allows you to mark the column as transient. If true
-// this column will be skipped when SQL statements are generated
-func (c *ColumnMap) SetTransient(b bool) *ColumnMap {
-	c.Transient = b
-	return c
-}
-
-// SetUnique adds "unique" to the create table statements for this
-// column, if b is true.
-func (c *ColumnMap) SetUnique(b bool) *ColumnMap {
-	c.Unique = b
-	return c
-}
-
-// SetNotNull adds "not null" to the create table statements for this
-// column, if nn is true.
-func (c *ColumnMap) SetNotNull(nn bool) *ColumnMap {
-	c.isNotNull = nn
-	return c
-}
-
-// SetMaxSize specifies the max length of values of this column. This is
-// passed to the dialect.ToSqlType() function, which can use the value
-// to alter the generated type for "create table" statements
-func (c *ColumnMap) SetMaxSize(size int) *ColumnMap {
-	c.MaxSize = size
-	return c
-}
-
-// Transaction represents a database transaction.
-// Insert/Update/Delete/Get/Exec operations will be run in the context
-// of that transaction.  Transactions should be terminated with
-// a call to Commit() or Rollback()
-type Transaction struct {
-	dbmap  *DbMap
-	tx     *sql.Tx
-	closed bool
-}
-
-// SqlExecutor exposes gorp operations that can be run from Pre/Post
-// hooks.  This hides whether the current operation that triggered the
-// hook is in a transaction.
-//
-// See the DbMap function docs for each of the functions below for more
-// information.
-type SqlExecutor interface {
-	Get(i interface{}, keys ...interface{}) (interface{}, error)
-	Insert(list ...interface{}) error
-	Update(list ...interface{}) (int64, error)
-	Delete(list ...interface{}) (int64, error)
-	Exec(query string, args ...interface{}) (sql.Result, error)
-	Select(i interface{}, query string,
-		args ...interface{}) ([]interface{}, error)
-	SelectInt(query string, args ...interface{}) (int64, error)
-	SelectNullInt(query string, args ...interface{}) (sql.NullInt64, error)
-	SelectFloat(query string, args ...interface{}) (float64, error)
-	SelectNullFloat(query string, args ...interface{}) (sql.NullFloat64, error)
-	SelectStr(query string, args ...interface{}) (string, error)
-	SelectNullStr(query string, args ...interface{}) (sql.NullString, error)
-	SelectOne(holder interface{}, query string, args ...interface{}) error
-	query(query string, args ...interface{}) (*sql.Rows, error)
-	queryRow(query string, args ...interface{}) *sql.Row
-}
-
-// Compile-time check that DbMap and Transaction implement the SqlExecutor
-// interface.
-var _, _ SqlExecutor = &DbMap{}, &Transaction{}
-
-type GorpLogger interface {
-	Printf(format string, v ...interface{})
-}
-
-// TraceOn turns on SQL statement logging for this DbMap.  After this is
-// called, all SQL statements will be sent to the logger.  If prefix is
-// a non-empty string, it will be written to the front of all logged
-// strings, which can aid in filtering log lines.
-//
-// Use TraceOn if you want to spy on the SQL statements that gorp
-// generates.
-//
-// Note that the base log.Logger type satisfies GorpLogger, but adapters can
-// easily be written for other logging packages (e.g., the golang-sanctioned
-// glog framework).
-func (m *DbMap) TraceOn(prefix string, logger GorpLogger) {
-	m.logger = logger
-	if prefix == "" {
-		m.logPrefix = prefix
-	} else {
-		m.logPrefix = fmt.Sprintf("%s ", prefix)
-	}
-}
-
-// TraceOff turns off tracing. It is idempotent.
-func (m *DbMap) TraceOff() {
-	m.logger = nil
-	m.logPrefix = ""
-}
-
-// AddTable registers the given interface type with gorp. The table name
-// will be given the name of the TypeOf(i).  You must call this function,
-// or AddTableWithName, for any struct type you wish to persist with
-// the given DbMap.
-//
-// This operation is idempotent. If i's type is already mapped, the
-// existing *TableMap is returned
-func (m *DbMap) AddTable(i interface{}) *TableMap {
-	return m.AddTableWithName(i, "")
-}
-
-// AddTableWithName has the same behavior as AddTable, but sets
-// table.TableName to name.
-func (m *DbMap) AddTableWithName(i interface{}, name string) *TableMap {
-	return m.AddTableWithNameAndSchema(i, "", name)
-}
-
-// AddTableWithNameAndSchema has the same behavior as AddTable, but sets
-// table.TableName to name.
-func (m *DbMap) AddTableWithNameAndSchema(i interface{}, schema string, name string) *TableMap {
-	t := reflect.TypeOf(i)
-	if name == "" {
-		name = t.Name()
-	}
-
-	// check if we have a table for this type already
-	// if so, update the name and return the existing pointer
-	for i := range m.tables {
-		table := m.tables[i]
-		if table.gotype == t {
-			table.TableName = name
-			return table
-		}
-	}
-
-	tmap := &TableMap{gotype: t, TableName: name, SchemaName: schema, dbmap: m}
-	tmap.Columns, tmap.version = m.readStructColumns(t)
-	m.tables = append(m.tables, tmap)
-
-	return tmap
-}
-
-func (m *DbMap) readStructColumns(t reflect.Type) (cols []*ColumnMap, version *ColumnMap) {
-	n := t.NumField()
-	for i := 0; i < n; i++ {
-		f := t.Field(i)
-		if f.Anonymous && f.Type.Kind() == reflect.Struct {
-			// Recursively add nested fields in embedded structs.
-			subcols, subversion := m.readStructColumns(f.Type)
-			// Don't append nested fields that have the same field
-			// name as an already-mapped field.
-			for _, subcol := range subcols {
-				shouldAppend := true
-				for _, col := range cols {
-					if !subcol.Transient && subcol.fieldName == col.fieldName {
-						shouldAppend = false
-						break
-					}
-				}
-				if shouldAppend {
-					cols = append(cols, subcol)
-				}
-			}
-			if subversion != nil {
-				version = subversion
-			}
-		} else {
-			columnName := f.Tag.Get("db")
-			if columnName == "" {
-				columnName = f.Name
-			}
-			gotype := f.Type
-			if m.TypeConverter != nil {
-				// Make a new pointer to a value of type gotype and
-				// pass it to the TypeConverter's FromDb method to see
-				// if a different type should be used for the column
-				// type during table creation.
-				value := reflect.New(gotype).Interface()
-				scanner, useHolder := m.TypeConverter.FromDb(value)
-				if useHolder {
-					gotype = reflect.TypeOf(scanner.Holder)
-				}
-			}
-			cm := &ColumnMap{
-				ColumnName: columnName,
-				Transient:  columnName == "-",
-				fieldName:  f.Name,
-				gotype:     gotype,
-			}
-			// Check for nested fields of the same field name and
-			// override them.
-			shouldAppend := true
-			for index, col := range cols {
-				if !col.Transient && col.fieldName == cm.fieldName {
-					cols[index] = cm
-					shouldAppend = false
-					break
-				}
-			}
-			if shouldAppend {
-				cols = append(cols, cm)
-			}
-			if cm.fieldName == "Version" {
-				log.New(os.Stderr, "", log.LstdFlags).Println("Warning: Automatic mapping of Version struct members to version columns (see optimistic locking) will be deprecated in next version (V2) See: https://github.com/go-gorp/gorp/pull/214")
-				version = cm
-			}
-		}
-	}
-	return
-}
-
-// CreateTables iterates through TableMaps registered to this DbMap and
-// executes "create table" statements against the database for each.
-//
-// This is particularly useful in unit tests where you want to create
-// and destroy the schema automatically.
-func (m *DbMap) CreateTables() error {
-	return m.createTables(false)
-}
-
-// CreateTablesIfNotExists is similar to CreateTables, but starts
-// each statement with "create table if not exists" so that existing
-// tables do not raise errors
-func (m *DbMap) CreateTablesIfNotExists() error {
-	return m.createTables(true)
-}
-
-func (m *DbMap) createTables(ifNotExists bool) error {
-	var err error
-	for i := range m.tables {
-		table := m.tables[i]
-
-		s := bytes.Buffer{}
-
-		if strings.TrimSpace(table.SchemaName) != "" {
-			schemaCreate := "create schema"
-			if ifNotExists {
-				s.WriteString(m.Dialect.IfSchemaNotExists(schemaCreate, table.SchemaName))
-			} else {
-				s.WriteString(schemaCreate)
-			}
-			s.WriteString(fmt.Sprintf(" %s;", table.SchemaName))
-		}
-
-		tableCreate := "create table"
-		if ifNotExists {
-			s.WriteString(m.Dialect.IfTableNotExists(tableCreate, table.SchemaName, table.TableName))
-		} else {
-			s.WriteString(tableCreate)
-		}
-		s.WriteString(fmt.Sprintf(" %s (", m.Dialect.QuotedTableForQuery(table.SchemaName, table.TableName)))
-
-		x := 0
-		for _, col := range table.Columns {
-			if !col.Transient {
-				if x > 0 {
-					s.WriteString(", ")
-				}
-				stype := m.Dialect.ToSqlType(col.gotype, col.MaxSize, col.isAutoIncr)
-				s.WriteString(fmt.Sprintf("%s %s", m.Dialect.QuoteField(col.ColumnName), stype))
-
-				if col.isPK || col.isNotNull {
-					s.WriteString(" not null")
-				}
-				if col.isPK && len(table.keys) == 1 {
-					s.WriteString(" primary key")
-				}
-				if col.Unique {
-					s.WriteString(" unique")
-				}
-				if col.isAutoIncr {
-					s.WriteString(fmt.Sprintf(" %s", m.Dialect.AutoIncrStr()))
-				}
-
-				x++
-			}
-		}
-		if len(table.keys) > 1 {
-			s.WriteString(", primary key (")
-			for x := range table.keys {
-				if x > 0 {
-					s.WriteString(", ")
-				}
-				s.WriteString(m.Dialect.QuoteField(table.keys[x].ColumnName))
-			}
-			s.WriteString(")")
-		}
-		if len(table.uniqueTogether) > 0 {
-			for _, columns := range table.uniqueTogether {
-				s.WriteString(", unique (")
-				for i, column := range columns {
-					if i > 0 {
-						s.WriteString(", ")
-					}
-					s.WriteString(m.Dialect.QuoteField(column))
-				}
-				s.WriteString(")")
-			}
-		}
-		s.WriteString(") ")
-		s.WriteString(m.Dialect.CreateTableSuffix())
-		s.WriteString(m.Dialect.QuerySuffix())
-		_, err = m.Exec(s.String())
-		if err != nil {
-			break
-		}
-	}
-	return err
-}
-
-// DropTable drops an individual table.  Will throw an error
-// if the table does not exist.
-func (m *DbMap) DropTable(table interface{}) error {
-	t := reflect.TypeOf(table)
-	return m.dropTable(t, false)
-}
-
-// DropTable drops an individual table.  Will NOT throw an error
-// if the table does not exist.
-func (m *DbMap) DropTableIfExists(table interface{}) error {
-	t := reflect.TypeOf(table)
-	return m.dropTable(t, true)
-}
-
-// DropTables iterates through TableMaps registered to this DbMap and
-// executes "drop table" statements against the database for each.
-func (m *DbMap) DropTables() error {
-	return m.dropTables(false)
-}
-
-// DropTablesIfExists is the same as DropTables, but uses the "if exists" clause to
-// avoid errors for tables that do not exist.
-func (m *DbMap) DropTablesIfExists() error {
-	return m.dropTables(true)
-}
-
-// Goes through all the registered tables, dropping them one by one.
-// If an error is encountered, then it is returned and the rest of
-// the tables are not dropped.
-func (m *DbMap) dropTables(addIfExists bool) (err error) {
-	for _, table := range m.tables {
-		err = m.dropTableImpl(table, addIfExists)
-		if err != nil {
-			return
-		}
-	}
-	return err
-}
-
-// Implementation of dropping a single table.
-func (m *DbMap) dropTable(t reflect.Type, addIfExists bool) error {
-	table := tableOrNil(m, t)
-	if table == nil {
-		return errors.New(fmt.Sprintf("table %s was not registered!", table.TableName))
-	}
-
-	return m.dropTableImpl(table, addIfExists)
-}
-
-func (m *DbMap) dropTableImpl(table *TableMap, ifExists bool) (err error) {
-	tableDrop := "drop table"
-	if ifExists {
-		tableDrop = m.Dialect.IfTableExists(tableDrop, table.SchemaName, table.TableName)
-	}
-	_, err = m.Exec(fmt.Sprintf("%s %s;", tableDrop, m.Dialect.QuotedTableForQuery(table.SchemaName, table.TableName)))
-	return err
-}
-
-// TruncateTables iterates through TableMaps registered to this DbMap and
-// executes "truncate table" statements against the database for each, or in the case of
-// sqlite, a "delete from" with no "where" clause, which uses the truncate optimization
-// (http://www.sqlite.org/lang_delete.html)
-func (m *DbMap) TruncateTables() error {
-	var err error
-	for i := range m.tables {
-		table := m.tables[i]
-		_, e := m.Exec(fmt.Sprintf("%s %s;", m.Dialect.TruncateClause(), m.Dialect.QuotedTableForQuery(table.SchemaName, table.TableName)))
-		if e != nil {
-			err = e
-		}
-	}
-	return err
-}
-
-// Insert runs a SQL INSERT statement for each element in list.  List
-// items must be pointers.
-//
-// Any interface whose TableMap has an auto-increment primary key will
-// have its last insert id bound to the PK field on the struct.
-//
-// The hook functions PreInsert() and/or PostInsert() will be executed
-// before/after the INSERT statement if the interface defines them.
-//
-// Panics if any interface in the list has not been registered with AddTable
-func (m *DbMap) Insert(list ...interface{}) error {
-	return insert(m, m, list...)
-}
-
-// Update runs a SQL UPDATE statement for each element in list.  List
-// items must be pointers.
-//
-// The hook functions PreUpdate() and/or PostUpdate() will be executed
-// before/after the UPDATE statement if the interface defines them.
-//
-// Returns the number of rows updated.
-//
-// Returns an error if SetKeys has not been called on the TableMap
-// Panics if any interface in the list has not been registered with AddTable
-func (m *DbMap) Update(list ...interface{}) (int64, error) {
-	return update(m, m, list...)
-}
-
-// Delete runs a SQL DELETE statement for each element in list.  List
-// items must be pointers.
-//
-// The hook functions PreDelete() and/or PostDelete() will be executed
-// before/after the DELETE statement if the interface defines them.
-//
-// Returns the number of rows deleted.
-//
-// Returns an error if SetKeys has not been called on the TableMap
-// Panics if any interface in the list has not been registered with AddTable
-func (m *DbMap) Delete(list ...interface{}) (int64, error) {
-	return delete(m, m, list...)
-}
-
-// Get runs a SQL SELECT to fetch a single row from the table based on the
-// primary key(s)
-//
-// i should be an empty value for the struct to load.  keys should be
-// the primary key value(s) for the row to load.  If multiple keys
-// exist on the table, the order should match the column order
-// specified in SetKeys() when the table mapping was defined.
-//
-// The hook function PostGet() will be executed after the SELECT
-// statement if the interface defines them.
-//
-// Returns a pointer to a struct that matches or nil if no row is found.
-//
-// Returns an error if SetKeys has not been called on the TableMap
-// Panics if any interface in the list has not been registered with AddTable
-func (m *DbMap) Get(i interface{}, keys ...interface{}) (interface{}, error) {
-	return get(m, m, i, keys...)
-}
-
-// Select runs an arbitrary SQL query, binding the columns in the result
-// to fields on the struct specified by i.  args represent the bind
-// parameters for the SQL statement.
-//
-// Column names on the SELECT statement should be aliased to the field names
-// on the struct i. Returns an error if one or more columns in the result
-// do not match.  It is OK if fields on i are not part of the SQL
-// statement.
-//
-// The hook function PostGet() will be executed after the SELECT
-// statement if the interface defines them.
-//
-// Values are returned in one of two ways:
-// 1. If i is a struct or a pointer to a struct, returns a slice of pointers to
-// matching rows of type i.
-// 2. If i is a pointer to a slice, the results will be appended to that slice
-// and nil returned.
-//
-// i does NOT need to be registered with AddTable()
-func (m *DbMap) Select(i interface{}, query string, args ...interface{}) ([]interface{}, error) {
-	return hookedselect(m, m, i, query, args...)
-}
-
-// Exec runs an arbitrary SQL statement.  args represent the bind parameters.
-// This is equivalent to running:  Exec() using database/sql
-func (m *DbMap) Exec(query string, args ...interface{}) (sql.Result, error) {
-	m.trace(query, args...)
-	return m.Db.Exec(query, args...)
-}
-
-// SelectInt is a convenience wrapper around the gorp.SelectInt function
-func (m *DbMap) SelectInt(query string, args ...interface{}) (int64, error) {
-	return SelectInt(m, query, args...)
-}
-
-// SelectNullInt is a convenience wrapper around the gorp.SelectNullInt function
-func (m *DbMap) SelectNullInt(query string, args ...interface{}) (sql.NullInt64, error) {
-	return SelectNullInt(m, query, args...)
-}
-
-// SelectFloat is a convenience wrapper around the gorp.SelectFlot function
-func (m *DbMap) SelectFloat(query string, args ...interface{}) (float64, error) {
-	return SelectFloat(m, query, args...)
-}
-
-// SelectNullFloat is a convenience wrapper around the gorp.SelectNullFloat function
-func (m *DbMap) SelectNullFloat(query string, args ...interface{}) (sql.NullFloat64, error) {
-	return SelectNullFloat(m, query, args...)
-}
-
-// SelectStr is a convenience wrapper around the gorp.SelectStr function
-func (m *DbMap) SelectStr(query string, args ...interface{}) (string, error) {
-	return SelectStr(m, query, args...)
-}
-
-// SelectNullStr is a convenience wrapper around the gorp.SelectNullStr function
-func (m *DbMap) SelectNullStr(query string, args ...interface{}) (sql.NullString, error) {
-	return SelectNullStr(m, query, args...)
-}
-
-// SelectOne is a convenience wrapper around the gorp.SelectOne function
-func (m *DbMap) SelectOne(holder interface{}, query string, args ...interface{}) error {
-	return SelectOne(m, m, holder, query, args...)
-}
-
-// Begin starts a gorp Transaction
-func (m *DbMap) Begin() (*Transaction, error) {
-	m.trace("begin;")
-	tx, err := m.Db.Begin()
-	if err != nil {
-		return nil, err
-	}
-	return &Transaction{m, tx, false}, nil
-}
-
-// TableFor returns the *TableMap corresponding to the given Go Type
-// If no table is mapped to that type an error is returned.
-// If checkPK is true and the mapped table has no registered PKs, an error is returned.
-func (m *DbMap) TableFor(t reflect.Type, checkPK bool) (*TableMap, error) {
-	table := tableOrNil(m, t)
-	if table == nil {
-		return nil, errors.New(fmt.Sprintf("No table found for type: %v", t.Name()))
-	}
-
-	if checkPK && len(table.keys) < 1 {
-		e := fmt.Sprintf("gorp: No keys defined for table: %s",
-			table.TableName)
-		return nil, errors.New(e)
-	}
-
-	return table, nil
-}
-
-// Prepare creates a prepared statement for later queries or executions.
-// Multiple queries or executions may be run concurrently from the returned statement.
-// This is equivalent to running:  Prepare() using database/sql
-func (m *DbMap) Prepare(query string) (*sql.Stmt, error) {
-	m.trace(query, nil)
-	return m.Db.Prepare(query)
-}
-
-func tableOrNil(m *DbMap, t reflect.Type) *TableMap {
-	for i := range m.tables {
-		table := m.tables[i]
-		if table.gotype == t {
-			return table
-		}
-	}
-	return nil
-}
-
-func (m *DbMap) tableForPointer(ptr interface{}, checkPK bool) (*TableMap, reflect.Value, error) {
-	ptrv := reflect.ValueOf(ptr)
-	if ptrv.Kind() != reflect.Ptr {
-		e := fmt.Sprintf("gorp: passed non-pointer: %v (kind=%v)", ptr,
-			ptrv.Kind())
-		return nil, reflect.Value{}, errors.New(e)
-	}
-	elem := ptrv.Elem()
-	etype := reflect.TypeOf(elem.Interface())
-	t, err := m.TableFor(etype, checkPK)
-	if err != nil {
-		return nil, reflect.Value{}, err
-	}
-
-	return t, elem, nil
-}
-
-func (m *DbMap) queryRow(query string, args ...interface{}) *sql.Row {
-	m.trace(query, args...)
-	return m.Db.QueryRow(query, args...)
-}
-
-func (m *DbMap) query(query string, args ...interface{}) (*sql.Rows, error) {
-	m.trace(query, args...)
-	return m.Db.Query(query, args...)
-}
-
-func (m *DbMap) trace(query string, args ...interface{}) {
-	if m.logger != nil {
-		var margs = argsString(args...)
-		m.logger.Printf("%s%s [%s]", m.logPrefix, query, margs)
-	}
-}
-
-func argsString(args ...interface{}) string {
-	var margs string
-	for i, a := range args {
-		var v interface{} = a
-		if x, ok := v.(driver.Valuer); ok {
-			y, err := x.Value()
-			if err == nil {
-				v = y
-			}
-		}
-		switch v.(type) {
-		case string:
-			v = fmt.Sprintf("%q", v)
-		default:
-			v = fmt.Sprintf("%v", v)
-		}
-		margs += fmt.Sprintf("%d:%s", i+1, v)
-		if i+1 < len(args) {
-			margs += " "
-		}
-	}
-	return margs
-}
-
-///////////////
-
-// Insert has the same behavior as DbMap.Insert(), but runs in a transaction.
-func (t *Transaction) Insert(list ...interface{}) error {
-	return insert(t.dbmap, t, list...)
-}
-
-// Update had the same behavior as DbMap.Update(), but runs in a transaction.
-func (t *Transaction) Update(list ...interface{}) (int64, error) {
-	return update(t.dbmap, t, list...)
-}
-
-// Delete has the same behavior as DbMap.Delete(), but runs in a transaction.
-func (t *Transaction) Delete(list ...interface{}) (int64, error) {
-	return delete(t.dbmap, t, list...)
-}
-
-// Get has the same behavior as DbMap.Get(), but runs in a transaction.
-func (t *Transaction) Get(i interface{}, keys ...interface{}) (interface{}, error) {
-	return get(t.dbmap, t, i, keys...)
-}
-
-// Select has the same behavior as DbMap.Select(), but runs in a transaction.
-func (t *Transaction) Select(i interface{}, query string, args ...interface{}) ([]interface{}, error) {
-	return hookedselect(t.dbmap, t, i, query, args...)
-}
-
-// Exec has the same behavior as DbMap.Exec(), but runs in a transaction.
-func (t *Transaction) Exec(query string, args ...interface{}) (sql.Result, error) {
-	t.dbmap.trace(query, args...)
-	return t.tx.Exec(query, args...)
-}
-
-// SelectInt is a convenience wrapper around the gorp.SelectInt function.
-func (t *Transaction) SelectInt(query string, args ...interface{}) (int64, error) {
-	return SelectInt(t, query, args...)
-}
-
-// SelectNullInt is a convenience wrapper around the gorp.SelectNullInt function.
-func (t *Transaction) SelectNullInt(query string, args ...interface{}) (sql.NullInt64, error) {
-	return SelectNullInt(t, query, args...)
-}
-
-// SelectFloat is a convenience wrapper around the gorp.SelectFloat function.
-func (t *Transaction) SelectFloat(query string, args ...interface{}) (float64, error) {
-	return SelectFloat(t, query, args...)
-}
-
-// SelectNullFloat is a convenience wrapper around the gorp.SelectNullFloat function.
-func (t *Transaction) SelectNullFloat(query string, args ...interface{}) (sql.NullFloat64, error) {
-	return SelectNullFloat(t, query, args...)
-}
-
-// SelectStr is a convenience wrapper around the gorp.SelectStr function.
-func (t *Transaction) SelectStr(query string, args ...interface{}) (string, error) {
-	return SelectStr(t, query, args...)
-}
-
-// SelectNullStr is a convenience wrapper around the gorp.SelectNullStr function.
-func (t *Transaction) SelectNullStr(query string, args ...interface{}) (sql.NullString, error) {
-	return SelectNullStr(t, query, args...)
-}
-
-// SelectOne is a convenience wrapper around the gorp.SelectOne function.
-func (t *Transaction) SelectOne(holder interface{}, query string, args ...interface{}) error {
-	return SelectOne(t.dbmap, t, holder, query, args...)
-}
-
-// Commit commits the underlying database transaction.
-func (t *Transaction) Commit() error {
-	if !t.closed {
-		t.closed = true
-		t.dbmap.trace("commit;")
-		return t.tx.Commit()
-	}
-
-	return sql.ErrTxDone
-}
-
-// Rollback rolls back the underlying database transaction.
-func (t *Transaction) Rollback() error {
-	if !t.closed {
-		t.closed = true
-		t.dbmap.trace("rollback;")
-		return t.tx.Rollback()
-	}
-
-	return sql.ErrTxDone
-}
-
-// Savepoint creates a savepoint with the given name. The name is interpolated
-// directly into the SQL SAVEPOINT statement, so you must sanitize it if it is
-// derived from user input.
-func (t *Transaction) Savepoint(name string) error {
-	query := "savepoint " + t.dbmap.Dialect.QuoteField(name)
-	t.dbmap.trace(query, nil)
-	_, err := t.tx.Exec(query)
-	return err
-}
-
-// RollbackToSavepoint rolls back to the savepoint with the given name. The
-// name is interpolated directly into the SQL SAVEPOINT statement, so you must
-// sanitize it if it is derived from user input.
-func (t *Transaction) RollbackToSavepoint(savepoint string) error {
-	query := "rollback to savepoint " + t.dbmap.Dialect.QuoteField(savepoint)
-	t.dbmap.trace(query, nil)
-	_, err := t.tx.Exec(query)
-	return err
-}
-
-// ReleaseSavepint releases the savepoint with the given name. The name is
-// interpolated directly into the SQL SAVEPOINT statement, so you must sanitize
-// it if it is derived from user input.
-func (t *Transaction) ReleaseSavepoint(savepoint string) error {
-	query := "release savepoint " + t.dbmap.Dialect.QuoteField(savepoint)
-	t.dbmap.trace(query, nil)
-	_, err := t.tx.Exec(query)
-	return err
-}
-
-// Prepare has the same behavior as DbMap.Prepare(), but runs in a transaction.
-func (t *Transaction) Prepare(query string) (*sql.Stmt, error) {
-	t.dbmap.trace(query, nil)
-	return t.tx.Prepare(query)
-}
-
-func (t *Transaction) queryRow(query string, args ...interface{}) *sql.Row {
-	t.dbmap.trace(query, args...)
-	return t.tx.QueryRow(query, args...)
-}
-
-func (t *Transaction) query(query string, args ...interface{}) (*sql.Rows, error) {
-	t.dbmap.trace(query, args...)
-	return t.tx.Query(query, args...)
-}
-
-///////////////
-
-// SelectInt executes the given query, which should be a SELECT statement for a single
-// integer column, and returns the value of the first row returned.  If no rows are
-// found, zero is returned.
-func SelectInt(e SqlExecutor, query string, args ...interface{}) (int64, error) {
-	var h int64
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return 0, err
-	}
-	return h, nil
-}
-
-// SelectNullInt executes the given query, which should be a SELECT statement for a single
-// integer column, and returns the value of the first row returned.  If no rows are
-// found, the empty sql.NullInt64 value is returned.
-func SelectNullInt(e SqlExecutor, query string, args ...interface{}) (sql.NullInt64, error) {
-	var h sql.NullInt64
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return h, err
-	}
-	return h, nil
-}
-
-// SelectFloat executes the given query, which should be a SELECT statement for a single
-// float column, and returns the value of the first row returned. If no rows are
-// found, zero is returned.
-func SelectFloat(e SqlExecutor, query string, args ...interface{}) (float64, error) {
-	var h float64
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return 0, err
-	}
-	return h, nil
-}
-
-// SelectNullFloat executes the given query, which should be a SELECT statement for a single
-// float column, and returns the value of the first row returned. If no rows are
-// found, the empty sql.NullInt64 value is returned.
-func SelectNullFloat(e SqlExecutor, query string, args ...interface{}) (sql.NullFloat64, error) {
-	var h sql.NullFloat64
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return h, err
-	}
-	return h, nil
-}
-
-// SelectStr executes the given query, which should be a SELECT statement for a single
-// char/varchar column, and returns the value of the first row returned.  If no rows are
-// found, an empty string is returned.
-func SelectStr(e SqlExecutor, query string, args ...interface{}) (string, error) {
-	var h string
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return "", err
-	}
-	return h, nil
-}
-
-// SelectNullStr executes the given query, which should be a SELECT
-// statement for a single char/varchar column, and returns the value
-// of the first row returned.  If no rows are found, the empty
-// sql.NullString is returned.
-func SelectNullStr(e SqlExecutor, query string, args ...interface{}) (sql.NullString, error) {
-	var h sql.NullString
-	err := selectVal(e, &h, query, args...)
-	if err != nil && err != sql.ErrNoRows {
-		return h, err
-	}
-	return h, nil
-}
-
-// SelectOne executes the given query (which should be a SELECT statement)
-// and binds the result to holder, which must be a pointer.
-//
-// If no row is found, an error (sql.ErrNoRows specifically) will be returned
-//
-// If more than one row is found, an error will be returned.
-//
-func SelectOne(m *DbMap, e SqlExecutor, holder interface{}, query string, args ...interface{}) error {
-	t := reflect.TypeOf(holder)
-	if t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	} else {
-		return fmt.Errorf("gorp: SelectOne holder must be a pointer, but got: %t", holder)
-	}
-
-	// Handle pointer to pointer
-	isptr := false
-	if t.Kind() == reflect.Ptr {
-		isptr = true
-		t = t.Elem()
-	}
-
-	if t.Kind() == reflect.Struct {
-		var nonFatalErr error
-
-		list, err := hookedselect(m, e, holder, query, args...)
-		if err != nil {
-			if !NonFatalError(err) {
-				return err
-			}
-			nonFatalErr = err
-		}
-
-		dest := reflect.ValueOf(holder)
-		if isptr {
-			dest = dest.Elem()
-		}
-
-		if list != nil && len(list) > 0 {
-			// check for multiple rows
-			if len(list) > 1 {
-				return fmt.Errorf("gorp: multiple rows returned for: %s - %v", query, args)
-			}
-
-			// Initialize if nil
-			if dest.IsNil() {
-				dest.Set(reflect.New(t))
-			}
-
-			// only one row found
-			src := reflect.ValueOf(list[0])
-			dest.Elem().Set(src.Elem())
-		} else {
-			// No rows found, return a proper error.
-			return sql.ErrNoRows
-		}
-
-		return nonFatalErr
-	}
-
-	return selectVal(e, holder, query, args...)
-}
-
-func selectVal(e SqlExecutor, holder interface{}, query string, args ...interface{}) error {
-	if len(args) == 1 {
-		switch m := e.(type) {
-		case *DbMap:
-			query, args = maybeExpandNamedQuery(m, query, args)
-		case *Transaction:
-			query, args = maybeExpandNamedQuery(m.dbmap, query, args)
-		}
-	}
-	rows, err := e.query(query, args...)
-	if err != nil {
-		return err
-	}
-	defer rows.Close()
-
-	if !rows.Next() {
-		return sql.ErrNoRows
-	}
-
-	return rows.Scan(holder)
-}
-
-///////////////
-
-func hookedselect(m *DbMap, exec SqlExecutor, i interface{}, query string,
-	args ...interface{}) ([]interface{}, error) {
-
-	var nonFatalErr error
-
-	list, err := rawselect(m, exec, i, query, args...)
-	if err != nil {
-		if !NonFatalError(err) {
-			return nil, err
-		}
-		nonFatalErr = err
-	}
-
-	// Determine where the results are: written to i, or returned in list
-	if t, _ := toSliceType(i); t == nil {
-		for _, v := range list {
-			if v, ok := v.(HasPostGet); ok {
-				err := v.PostGet(exec)
-				if err != nil {
-					return nil, err
-				}
-			}
-		}
-	} else {
-		resultsValue := reflect.Indirect(reflect.ValueOf(i))
-		for i := 0; i < resultsValue.Len(); i++ {
-			if v, ok := resultsValue.Index(i).Interface().(HasPostGet); ok {
-				err := v.PostGet(exec)
-				if err != nil {
-					return nil, err
-				}
-			}
-		}
-	}
-	return list, nonFatalErr
-}
-
-func rawselect(m *DbMap, exec SqlExecutor, i interface{}, query string,
-	args ...interface{}) ([]interface{}, error) {
-	var (
-		appendToSlice   = false // Write results to i directly?
-		intoStruct      = true  // Selecting into a struct?
-		pointerElements = true  // Are the slice elements pointers (vs values)?
-	)
-
-	var nonFatalErr error
-
-	// get type for i, verifying it's a supported destination
-	t, err := toType(i)
-	if err != nil {
-		var err2 error
-		if t, err2 = toSliceType(i); t == nil {
-			if err2 != nil {
-				return nil, err2
-			}
-			return nil, err
-		}
-		pointerElements = t.Kind() == reflect.Ptr
-		if pointerElements {
-			t = t.Elem()
-		}
-		appendToSlice = true
-		intoStruct = t.Kind() == reflect.Struct
-	}
-
-	// If the caller supplied a single struct/map argument, assume a "named
-	// parameter" query.  Extract the named arguments from the struct/map, create
-	// the flat arg slice, and rewrite the query to use the dialect's placeholder.
-	if len(args) == 1 {
-		query, args = maybeExpandNamedQuery(m, query, args)
-	}
-
-	// Run the query
-	rows, err := exec.query(query, args...)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	// Fetch the column names as returned from db
-	cols, err := rows.Columns()
-	if err != nil {
-		return nil, err
-	}
-
-	if !intoStruct && len(cols) > 1 {
-		return nil, fmt.Errorf("gorp: select into non-struct slice requires 1 column, got %d", len(cols))
-	}
-
-	var colToFieldIndex [][]int
-	if intoStruct {
-		if colToFieldIndex, err = columnToFieldIndex(m, t, cols); err != nil {
-			if !NonFatalError(err) {
-				return nil, err
-			}
-			nonFatalErr = err
-		}
-	}
-
-	conv := m.TypeConverter
-
-	// Add results to one of these two slices.
-	var (
-		list       = make([]interface{}, 0)
-		sliceValue = reflect.Indirect(reflect.ValueOf(i))
-	)
-
-	for {
-		if !rows.Next() {
-			// if error occured return rawselect
-			if rows.Err() != nil {
-				return nil, rows.Err()
-			}
-			// time to exit from outer "for" loop
-			break
-		}
-		v := reflect.New(t)
-		dest := make([]interface{}, len(cols))
-
-		custScan := make([]CustomScanner, 0)
-
-		for x := range cols {
-			f := v.Elem()
-			if intoStruct {
-				index := colToFieldIndex[x]
-				if index == nil {
-					// this field is not present in the struct, so create a dummy
-					// value for rows.Scan to scan into
-					var dummy sql.RawBytes
-					dest[x] = &dummy
-					continue
-				}
-				f = f.FieldByIndex(index)
-			}
-			target := f.Addr().Interface()
-			if conv != nil {
-				scanner, ok := conv.FromDb(target)
-				if ok {
-					target = scanner.Holder
-					custScan = append(custScan, scanner)
-				}
-			}
-			dest[x] = target
-		}
-
-		err = rows.Scan(dest...)
-		if err != nil {
-			return nil, err
-		}
-
-		for _, c := range custScan {
-			err = c.Bind()
-			if err != nil {
-				return nil, err
-			}
-		}
-
-		if appendToSlice {
-			if !pointerElements {
-				v = v.Elem()
-			}
-			sliceValue.Set(reflect.Append(sliceValue, v))
-		} else {
-			list = append(list, v.Interface())
-		}
-	}
-
-	if appendToSlice && sliceValue.IsNil() {
-		sliceValue.Set(reflect.MakeSlice(sliceValue.Type(), 0, 0))
-	}
-
-	return list, nonFatalErr
-}
-
-// maybeExpandNamedQuery checks the given arg to see if it's eligible to be used
-// as input to a named query.  If so, it rewrites the query to use
-// dialect-dependent bindvars and instantiates the corresponding slice of
-// parameters by extracting data from the map / struct.
-// If not, returns the input values unchanged.
-func maybeExpandNamedQuery(m *DbMap, query string, args []interface{}) (string, []interface{}) {
-	arg := reflect.ValueOf(args[0])
-	for arg.Kind() == reflect.Ptr {
-		arg = arg.Elem()
-	}
-	switch {
-	case arg.Kind() == reflect.Map && arg.Type().Key().Kind() == reflect.String:
-		return expandNamedQuery(m, query, func(key string) reflect.Value {
-			return arg.MapIndex(reflect.ValueOf(key))
-		})
-		// #84 - ignore time.Time structs here - there may be a cleaner way to do this
-	case arg.Kind() == reflect.Struct && !(arg.Type().PkgPath() == "time" && arg.Type().Name() == "Time"):
-		return expandNamedQuery(m, query, arg.FieldByName)
-	}
-	return query, args
-}
-
-var keyRegexp = regexp.MustCompile(`:[[:word:]]+`)
-
-// expandNamedQuery accepts a query with placeholders of the form ":key", and a
-// single arg of Kind Struct or Map[string].  It returns the query with the
-// dialect's placeholders, and a slice of args ready for positional insertion
-// into the query.
-func expandNamedQuery(m *DbMap, query string, keyGetter func(key string) reflect.Value) (string, []interface{}) {
-	var (
-		n    int
-		args []interface{}
-	)
-	return keyRegexp.ReplaceAllStringFunc(query, func(key string) string {
-		val := keyGetter(key[1:])
-		if !val.IsValid() {
-			return key
-		}
-		args = append(args, val.Interface())
-		newVar := m.Dialect.BindVar(n)
-		n++
-		return newVar
-	}), args
-}
-
-func columnToFieldIndex(m *DbMap, t reflect.Type, cols []string) ([][]int, error) {
-	colToFieldIndex := make([][]int, len(cols))
-
-	// check if type t is a mapped table - if so we'll
-	// check the table for column aliasing below
-	tableMapped := false
-	table := tableOrNil(m, t)
-	if table != nil {
-		tableMapped = true
-	}
-
-	// Loop over column names and find field in i to bind to
-	// based on column name. all returned columns must match
-	// a field in the i struct
-	missingColNames := []string{}
-	for x := range cols {
-		colName := strings.ToLower(cols[x])
-		field, found := t.FieldByNameFunc(func(fieldName string) bool {
-			field, _ := t.FieldByName(fieldName)
-			fieldName = field.Tag.Get("db")
-
-			if fieldName == "-" {
-				return false
-			} else if fieldName == "" {
-				fieldName = field.Name
-			}
-			if tableMapped {
-				colMap := colMapOrNil(table, fieldName)
-				if colMap != nil {
-					fieldName = colMap.ColumnName
-				}
-			}
-			return colName == strings.ToLower(fieldName)
-		})
-		if found {
-			colToFieldIndex[x] = field.Index
-		}
-		if colToFieldIndex[x] == nil {
-			missingColNames = append(missingColNames, colName)
-		}
-	}
-	if len(missingColNames) > 0 {
-		return colToFieldIndex, &NoFieldInTypeError{
-			TypeName:        t.Name(),
-			MissingColNames: missingColNames,
-		}
-	}
-	return colToFieldIndex, nil
-}
-
-func fieldByName(val reflect.Value, fieldName string) *reflect.Value {
-	// try to find field by exact match
-	f := val.FieldByName(fieldName)
-
-	if f != zeroVal {
-		return &f
-	}
-
-	// try to find by case insensitive match - only the Postgres driver
-	// seems to require this - in the case where columns are aliased in the sql
-	fieldNameL := strings.ToLower(fieldName)
-	fieldCount := val.NumField()
-	t := val.Type()
-	for i := 0; i < fieldCount; i++ {
-		sf := t.Field(i)
-		if strings.ToLower(sf.Name) == fieldNameL {
-			f := val.Field(i)
-			return &f
-		}
-	}
-
-	return nil
-}
-
-// toSliceType returns the element type of the given object, if the object is a
-// "*[]*Element" or "*[]Element". If not, returns nil.
-// err is returned if the user was trying to pass a pointer-to-slice but failed.
-func toSliceType(i interface{}) (reflect.Type, error) {
-	t := reflect.TypeOf(i)
-	if t.Kind() != reflect.Ptr {
-		// If it's a slice, return a more helpful error message
-		if t.Kind() == reflect.Slice {
-			return nil, fmt.Errorf("gorp: Cannot SELECT into a non-pointer slice: %v", t)
-		}
-		return nil, nil
-	}
-	if t = t.Elem(); t.Kind() != reflect.Slice {
-		return nil, nil
-	}
-	return t.Elem(), nil
-}
-
-func toType(i interface{}) (reflect.Type, error) {
-	t := reflect.TypeOf(i)
-
-	// If a Pointer to a type, follow
-	for t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-
-	if t.Kind() != reflect.Struct {
-		return nil, fmt.Errorf("gorp: Cannot SELECT into this type: %v", reflect.TypeOf(i))
-	}
-	return t, nil
-}
-
-func get(m *DbMap, exec SqlExecutor, i interface{},
-	keys ...interface{}) (interface{}, error) {
-
-	t, err := toType(i)
-	if err != nil {
-		return nil, err
-	}
-
-	table, err := m.TableFor(t, true)
-	if err != nil {
-		return nil, err
-	}
-
-	plan := table.bindGet()
-
-	v := reflect.New(t)
-	dest := make([]interface{}, len(plan.argFields))
-
-	conv := m.TypeConverter
-	custScan := make([]CustomScanner, 0)
-
-	for x, fieldName := range plan.argFields {
-		f := v.Elem().FieldByName(fieldName)
-		target := f.Addr().Interface()
-		if conv != nil {
-			scanner, ok := conv.FromDb(target)
-			if ok {
-				target = scanner.Holder
-				custScan = append(custScan, scanner)
-			}
-		}
-		dest[x] = target
-	}
-
-	row := exec.queryRow(plan.query, keys...)
-	err = row.Scan(dest...)
-	if err != nil {
-		if err == sql.ErrNoRows {
-			err = nil
-		}
-		return nil, err
-	}
-
-	for _, c := range custScan {
-		err = c.Bind()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	if v, ok := v.Interface().(HasPostGet); ok {
-		err := v.PostGet(exec)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return v.Interface(), nil
-}
-
-func delete(m *DbMap, exec SqlExecutor, list ...interface{}) (int64, error) {
-	count := int64(0)
-	for _, ptr := range list {
-		table, elem, err := m.tableForPointer(ptr, true)
-		if err != nil {
-			return -1, err
-		}
-
-		eval := elem.Addr().Interface()
-		if v, ok := eval.(HasPreDelete); ok {
-			err = v.PreDelete(exec)
-			if err != nil {
-				return -1, err
-			}
-		}
-
-		bi, err := table.bindDelete(elem)
-		if err != nil {
-			return -1, err
-		}
-
-		res, err := exec.Exec(bi.query, bi.args...)
-		if err != nil {
-			return -1, err
-		}
-		rows, err := res.RowsAffected()
-		if err != nil {
-			return -1, err
-		}
-
-		if rows == 0 && bi.existingVersion > 0 {
-			return lockError(m, exec, table.TableName,
-				bi.existingVersion, elem, bi.keys...)
-		}
-
-		count += rows
-
-		if v, ok := eval.(HasPostDelete); ok {
-			err := v.PostDelete(exec)
-			if err != nil {
-				return -1, err
-			}
-		}
-	}
-
-	return count, nil
-}
-
-func update(m *DbMap, exec SqlExecutor, list ...interface{}) (int64, error) {
-	count := int64(0)
-	for _, ptr := range list {
-		table, elem, err := m.tableForPointer(ptr, true)
-		if err != nil {
-			return -1, err
-		}
-
-		eval := elem.Addr().Interface()
-		if v, ok := eval.(HasPreUpdate); ok {
-			err = v.PreUpdate(exec)
-			if err != nil {
-				return -1, err
-			}
-		}
-
-		bi, err := table.bindUpdate(elem)
-		if err != nil {
-			return -1, err
-		}
-
-		res, err := exec.Exec(bi.query, bi.args...)
-		if err != nil {
-			return -1, err
-		}
-
-		rows, err := res.RowsAffected()
-		if err != nil {
-			return -1, err
-		}
-
-		if rows == 0 && bi.existingVersion > 0 {
-			return lockError(m, exec, table.TableName,
-				bi.existingVersion, elem, bi.keys...)
-		}
-
-		if bi.versField != "" {
-			elem.FieldByName(bi.versField).SetInt(bi.existingVersion + 1)
-		}
-
-		count += rows
-
-		if v, ok := eval.(HasPostUpdate); ok {
-			err = v.PostUpdate(exec)
-			if err != nil {
-				return -1, err
-			}
-		}
-	}
-	return count, nil
-}
-
-func insert(m *DbMap, exec SqlExecutor, list ...interface{}) error {
-	for _, ptr := range list {
-		table, elem, err := m.tableForPointer(ptr, false)
-		if err != nil {
-			return err
-		}
-
-		eval := elem.Addr().Interface()
-		if v, ok := eval.(HasPreInsert); ok {
-			err := v.PreInsert(exec)
-			if err != nil {
-				return err
-			}
-		}
-
-		bi, err := table.bindInsert(elem)
-		if err != nil {
-			return err
-		}
-
-		if bi.autoIncrIdx > -1 {
-			f := elem.FieldByName(bi.autoIncrFieldName)
-			switch inserter := m.Dialect.(type) {
-			case IntegerAutoIncrInserter:
-				id, err := inserter.InsertAutoIncr(exec, bi.query, bi.args...)
-				if err != nil {
-					return err
-				}
-				k := f.Kind()
-				if (k == reflect.Int) || (k == reflect.Int16) || (k == reflect.Int32) || (k == reflect.Int64) {
-					f.SetInt(id)
-				} else if (k == reflect.Uint) || (k == reflect.Uint16) || (k == reflect.Uint32) || (k == reflect.Uint64) {
-					f.SetUint(uint64(id))
-				} else {
-					return fmt.Errorf("gorp: Cannot set autoincrement value on non-Int field. SQL=%s  autoIncrIdx=%d autoIncrFieldName=%s", bi.query, bi.autoIncrIdx, bi.autoIncrFieldName)
-				}
-			case TargetedAutoIncrInserter:
-				err := inserter.InsertAutoIncrToTarget(exec, bi.query, f.Addr().Interface(), bi.args...)
-				if err != nil {
-					return err
-				}
-			default:
-				return fmt.Errorf("gorp: Cannot use autoincrement fields on dialects that do not implement an autoincrementing interface")
-			}
-		} else {
-			_, err := exec.Exec(bi.query, bi.args...)
-			if err != nil {
-				return err
-			}
-		}
-
-		if v, ok := eval.(HasPostInsert); ok {
-			err := v.PostInsert(exec)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func lockError(m *DbMap, exec SqlExecutor, tableName string,
-	existingVer int64, elem reflect.Value,
-	keys ...interface{}) (int64, error) {
-
-	existing, err := get(m, exec, elem.Interface(), keys...)
-	if err != nil {
-		return -1, err
-	}
-
-	ole := OptimisticLockError{tableName, keys, true, existingVer}
-	if existing == nil {
-		ole.RowExists = false
-	}
-	return -1, ole
-}
-
-// PostUpdate() will be executed after the GET statement.
-type HasPostGet interface {
-	PostGet(SqlExecutor) error
-}
-
-// PostUpdate() will be executed after the DELETE statement
-type HasPostDelete interface {
-	PostDelete(SqlExecutor) error
-}
-
-// PostUpdate() will be executed after the UPDATE statement
-type HasPostUpdate interface {
-	PostUpdate(SqlExecutor) error
-}
-
-// PostInsert() will be executed after the INSERT statement
-type HasPostInsert interface {
-	PostInsert(SqlExecutor) error
-}
-
-// PreDelete() will be executed before the DELETE statement.
-type HasPreDelete interface {
-	PreDelete(SqlExecutor) error
-}
-
-// PreUpdate() will be executed before UPDATE statement.
-type HasPreUpdate interface {
-	PreUpdate(SqlExecutor) error
-}
-
-// PreInsert() will be executed before INSERT statement.
-type HasPreInsert interface {
-	PreInsert(SqlExecutor) error
-}
diff --git a/vendor/gopkg.in/gorp.v1/test_all.sh b/vendor/gopkg.in/gorp.v1/test_all.sh
deleted file mode 100755
index f870b39..0000000
--- a/vendor/gopkg.in/gorp.v1/test_all.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/sh
-
-# on macs, you may need to:
-# export GOBUILDFLAG=-ldflags -linkmode=external
-
-set -e 
-
-export GORP_TEST_DSN=gorptest/gorptest/gorptest
-export GORP_TEST_DIALECT=mysql
-go test $GOBUILDFLAG .
-
-export GORP_TEST_DSN=gorptest:gorptest@/gorptest
-export GORP_TEST_DIALECT=gomysql
-go test $GOBUILDFLAG .
-
-export GORP_TEST_DSN="user=gorptest password=gorptest dbname=gorptest sslmode=disable"
-export GORP_TEST_DIALECT=postgres
-go test $GOBUILDFLAG .
-
-export GORP_TEST_DSN=/tmp/gorptest.bin
-export GORP_TEST_DIALECT=sqlite
-go test $GOBUILDFLAG .
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE b/vendor/gopkg.in/yaml.v2/LICENSE
deleted file mode 100644
index 8dada3e..0000000
--- a/vendor/gopkg.in/yaml.v2/LICENSE
+++ /dev/null
@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "{}"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright {yyyy} {name of copyright owner}
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
deleted file mode 100644
index 8da58fb..0000000
--- a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
+++ /dev/null
@@ -1,31 +0,0 @@
-The following files were ported to Go from C files of libyaml, and thus
-are still covered by their original copyright and license:
-
-    apic.go
-    emitterc.go
-    parserc.go
-    readerc.go
-    scannerc.go
-    writerc.go
-    yamlh.go
-    yamlprivateh.go
-
-Copyright (c) 2006 Kirill Simonov
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/vendor/gopkg.in/yaml.v2/NOTICE b/vendor/gopkg.in/yaml.v2/NOTICE
deleted file mode 100644
index 866d74a..0000000
--- a/vendor/gopkg.in/yaml.v2/NOTICE
+++ /dev/null
@@ -1,13 +0,0 @@
-Copyright 2011-2016 Canonical Ltd.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/vendor/gopkg.in/yaml.v2/README.md b/vendor/gopkg.in/yaml.v2/README.md
deleted file mode 100644
index b50c6e8..0000000
--- a/vendor/gopkg.in/yaml.v2/README.md
+++ /dev/null
@@ -1,133 +0,0 @@
-# YAML support for the Go language
-
-Introduction
-------------
-
-The yaml package enables Go programs to comfortably encode and decode YAML
-values. It was developed within [Canonical](https://www.canonical.com) as
-part of the [juju](https://juju.ubuntu.com) project, and is based on a
-pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
-C library to parse and generate YAML data quickly and reliably.
-
-Compatibility
--------------
-
-The yaml package supports most of YAML 1.1 and 1.2, including support for
-anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
-implemented, and base-60 floats from YAML 1.1 are purposefully not
-supported since they're a poor design and are gone in YAML 1.2.
-
-Installation and usage
-----------------------
-
-The import path for the package is *gopkg.in/yaml.v2*.
-
-To install it, run:
-
-    go get gopkg.in/yaml.v2
-
-API documentation
------------------
-
-If opened in a browser, the import path itself leads to the API documentation:
-
-  * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
-
-API stability
--------------
-
-The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
-
-
-License
--------
-
-The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
-
-
-Example
--------
-
-```Go
-package main
-
-import (
-        "fmt"
-        "log"
-
-        "gopkg.in/yaml.v2"
-)
-
-var data = `
-a: Easy!
-b:
-  c: 2
-  d: [3, 4]
-`
-
-// Note: struct fields must be public in order for unmarshal to
-// correctly populate the data.
-type T struct {
-        A string
-        B struct {
-                RenamedC int   `yaml:"c"`
-                D        []int `yaml:",flow"`
-        }
-}
-
-func main() {
-        t := T{}
-    
-        err := yaml.Unmarshal([]byte(data), &t)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- t:\n%v\n\n", t)
-    
-        d, err := yaml.Marshal(&t)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- t dump:\n%s\n\n", string(d))
-    
-        m := make(map[interface{}]interface{})
-    
-        err = yaml.Unmarshal([]byte(data), &m)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- m:\n%v\n\n", m)
-    
-        d, err = yaml.Marshal(&m)
-        if err != nil {
-                log.Fatalf("error: %v", err)
-        }
-        fmt.Printf("--- m dump:\n%s\n\n", string(d))
-}
-```
-
-This example will generate the following output:
-
-```
---- t:
-{Easy! {2 [3 4]}}
-
---- t dump:
-a: Easy!
-b:
-  c: 2
-  d: [3, 4]
-
-
---- m:
-map[a:Easy! b:map[c:2 d:[3 4]]]
-
---- m dump:
-a: Easy!
-b:
-  c: 2
-  d:
-  - 3
-  - 4
-```
-
diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go
deleted file mode 100644
index 1f7e87e..0000000
--- a/vendor/gopkg.in/yaml.v2/apic.go
+++ /dev/null
@@ -1,739 +0,0 @@
-package yaml
-
-import (
-	"io"
-)
-
-func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
-	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
-
-	// Check if we can move the queue at the beginning of the buffer.
-	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
-		if parser.tokens_head != len(parser.tokens) {
-			copy(parser.tokens, parser.tokens[parser.tokens_head:])
-		}
-		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
-		parser.tokens_head = 0
-	}
-	parser.tokens = append(parser.tokens, *token)
-	if pos < 0 {
-		return
-	}
-	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
-	parser.tokens[parser.tokens_head+pos] = *token
-}
-
-// Create a new parser object.
-func yaml_parser_initialize(parser *yaml_parser_t) bool {
-	*parser = yaml_parser_t{
-		raw_buffer: make([]byte, 0, input_raw_buffer_size),
-		buffer:     make([]byte, 0, input_buffer_size),
-	}
-	return true
-}
-
-// Destroy a parser object.
-func yaml_parser_delete(parser *yaml_parser_t) {
-	*parser = yaml_parser_t{}
-}
-
-// String read handler.
-func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
-	if parser.input_pos == len(parser.input) {
-		return 0, io.EOF
-	}
-	n = copy(buffer, parser.input[parser.input_pos:])
-	parser.input_pos += n
-	return n, nil
-}
-
-// Reader read handler.
-func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
-	return parser.input_reader.Read(buffer)
-}
-
-// Set a string input.
-func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
-	if parser.read_handler != nil {
-		panic("must set the input source only once")
-	}
-	parser.read_handler = yaml_string_read_handler
-	parser.input = input
-	parser.input_pos = 0
-}
-
-// Set a file input.
-func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
-	if parser.read_handler != nil {
-		panic("must set the input source only once")
-	}
-	parser.read_handler = yaml_reader_read_handler
-	parser.input_reader = r
-}
-
-// Set the source encoding.
-func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
-	if parser.encoding != yaml_ANY_ENCODING {
-		panic("must set the encoding only once")
-	}
-	parser.encoding = encoding
-}
-
-// Create a new emitter object.
-func yaml_emitter_initialize(emitter *yaml_emitter_t) {
-	*emitter = yaml_emitter_t{
-		buffer:     make([]byte, output_buffer_size),
-		raw_buffer: make([]byte, 0, output_raw_buffer_size),
-		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
-		events:     make([]yaml_event_t, 0, initial_queue_size),
-	}
-}
-
-// Destroy an emitter object.
-func yaml_emitter_delete(emitter *yaml_emitter_t) {
-	*emitter = yaml_emitter_t{}
-}
-
-// String write handler.
-func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
-	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
-	return nil
-}
-
-// yaml_writer_write_handler uses emitter.output_writer to write the
-// emitted text.
-func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
-	_, err := emitter.output_writer.Write(buffer)
-	return err
-}
-
-// Set a string output.
-func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
-	if emitter.write_handler != nil {
-		panic("must set the output target only once")
-	}
-	emitter.write_handler = yaml_string_write_handler
-	emitter.output_buffer = output_buffer
-}
-
-// Set a file output.
-func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
-	if emitter.write_handler != nil {
-		panic("must set the output target only once")
-	}
-	emitter.write_handler = yaml_writer_write_handler
-	emitter.output_writer = w
-}
-
-// Set the output encoding.
-func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
-	if emitter.encoding != yaml_ANY_ENCODING {
-		panic("must set the output encoding only once")
-	}
-	emitter.encoding = encoding
-}
-
-// Set the canonical output style.
-func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
-	emitter.canonical = canonical
-}
-
-//// Set the indentation increment.
-func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
-	if indent < 2 || indent > 9 {
-		indent = 2
-	}
-	emitter.best_indent = indent
-}
-
-// Set the preferred line width.
-func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
-	if width < 0 {
-		width = -1
-	}
-	emitter.best_width = width
-}
-
-// Set if unescaped non-ASCII characters are allowed.
-func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
-	emitter.unicode = unicode
-}
-
-// Set the preferred line break character.
-func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
-	emitter.line_break = line_break
-}
-
-///*
-// * Destroy a token object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_token_delete(yaml_token_t *token)
-//{
-//    assert(token);  // Non-NULL token object expected.
-//
-//    switch (token.type)
-//    {
-//        case YAML_TAG_DIRECTIVE_TOKEN:
-//            yaml_free(token.data.tag_directive.handle);
-//            yaml_free(token.data.tag_directive.prefix);
-//            break;
-//
-//        case YAML_ALIAS_TOKEN:
-//            yaml_free(token.data.alias.value);
-//            break;
-//
-//        case YAML_ANCHOR_TOKEN:
-//            yaml_free(token.data.anchor.value);
-//            break;
-//
-//        case YAML_TAG_TOKEN:
-//            yaml_free(token.data.tag.handle);
-//            yaml_free(token.data.tag.suffix);
-//            break;
-//
-//        case YAML_SCALAR_TOKEN:
-//            yaml_free(token.data.scalar.value);
-//            break;
-//
-//        default:
-//            break;
-//    }
-//
-//    memset(token, 0, sizeof(yaml_token_t));
-//}
-//
-///*
-// * Check if a string is a valid UTF-8 sequence.
-// *
-// * Check 'reader.c' for more details on UTF-8 encoding.
-// */
-//
-//static int
-//yaml_check_utf8(yaml_char_t *start, size_t length)
-//{
-//    yaml_char_t *end = start+length;
-//    yaml_char_t *pointer = start;
-//
-//    while (pointer < end) {
-//        unsigned char octet;
-//        unsigned int width;
-//        unsigned int value;
-//        size_t k;
-//
-//        octet = pointer[0];
-//        width = (octet & 0x80) == 0x00 ? 1 :
-//                (octet & 0xE0) == 0xC0 ? 2 :
-//                (octet & 0xF0) == 0xE0 ? 3 :
-//                (octet & 0xF8) == 0xF0 ? 4 : 0;
-//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
-//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
-//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
-//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
-//        if (!width) return 0;
-//        if (pointer+width > end) return 0;
-//        for (k = 1; k < width; k ++) {
-//            octet = pointer[k];
-//            if ((octet & 0xC0) != 0x80) return 0;
-//            value = (value << 6) + (octet & 0x3F);
-//        }
-//        if (!((width == 1) ||
-//            (width == 2 && value >= 0x80) ||
-//            (width == 3 && value >= 0x800) ||
-//            (width == 4 && value >= 0x10000))) return 0;
-//
-//        pointer += width;
-//    }
-//
-//    return 1;
-//}
-//
-
-// Create STREAM-START.
-func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
-	*event = yaml_event_t{
-		typ:      yaml_STREAM_START_EVENT,
-		encoding: encoding,
-	}
-}
-
-// Create STREAM-END.
-func yaml_stream_end_event_initialize(event *yaml_event_t) {
-	*event = yaml_event_t{
-		typ: yaml_STREAM_END_EVENT,
-	}
-}
-
-// Create DOCUMENT-START.
-func yaml_document_start_event_initialize(
-	event *yaml_event_t,
-	version_directive *yaml_version_directive_t,
-	tag_directives []yaml_tag_directive_t,
-	implicit bool,
-) {
-	*event = yaml_event_t{
-		typ:               yaml_DOCUMENT_START_EVENT,
-		version_directive: version_directive,
-		tag_directives:    tag_directives,
-		implicit:          implicit,
-	}
-}
-
-// Create DOCUMENT-END.
-func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
-	*event = yaml_event_t{
-		typ:      yaml_DOCUMENT_END_EVENT,
-		implicit: implicit,
-	}
-}
-
-///*
-// * Create ALIAS.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
-//{
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    anchor_copy *yaml_char_t = NULL
-//
-//    assert(event) // Non-NULL event object is expected.
-//    assert(anchor) // Non-NULL anchor is expected.
-//
-//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
-//
-//    anchor_copy = yaml_strdup(anchor)
-//    if (!anchor_copy)
-//        return 0
-//
-//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
-//
-//    return 1
-//}
-
-// Create SCALAR.
-func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
-	*event = yaml_event_t{
-		typ:             yaml_SCALAR_EVENT,
-		anchor:          anchor,
-		tag:             tag,
-		value:           value,
-		implicit:        plain_implicit,
-		quoted_implicit: quoted_implicit,
-		style:           yaml_style_t(style),
-	}
-	return true
-}
-
-// Create SEQUENCE-START.
-func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
-	*event = yaml_event_t{
-		typ:      yaml_SEQUENCE_START_EVENT,
-		anchor:   anchor,
-		tag:      tag,
-		implicit: implicit,
-		style:    yaml_style_t(style),
-	}
-	return true
-}
-
-// Create SEQUENCE-END.
-func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
-	*event = yaml_event_t{
-		typ: yaml_SEQUENCE_END_EVENT,
-	}
-	return true
-}
-
-// Create MAPPING-START.
-func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
-	*event = yaml_event_t{
-		typ:      yaml_MAPPING_START_EVENT,
-		anchor:   anchor,
-		tag:      tag,
-		implicit: implicit,
-		style:    yaml_style_t(style),
-	}
-}
-
-// Create MAPPING-END.
-func yaml_mapping_end_event_initialize(event *yaml_event_t) {
-	*event = yaml_event_t{
-		typ: yaml_MAPPING_END_EVENT,
-	}
-}
-
-// Destroy an event object.
-func yaml_event_delete(event *yaml_event_t) {
-	*event = yaml_event_t{}
-}
-
-///*
-// * Create a document object.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_initialize(document *yaml_document_t,
-//        version_directive *yaml_version_directive_t,
-//        tag_directives_start *yaml_tag_directive_t,
-//        tag_directives_end *yaml_tag_directive_t,
-//        start_implicit int, end_implicit int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    struct {
-//        start *yaml_node_t
-//        end *yaml_node_t
-//        top *yaml_node_t
-//    } nodes = { NULL, NULL, NULL }
-//    version_directive_copy *yaml_version_directive_t = NULL
-//    struct {
-//        start *yaml_tag_directive_t
-//        end *yaml_tag_directive_t
-//        top *yaml_tag_directive_t
-//    } tag_directives_copy = { NULL, NULL, NULL }
-//    value yaml_tag_directive_t = { NULL, NULL }
-//    mark yaml_mark_t = { 0, 0, 0 }
-//
-//    assert(document) // Non-NULL document object is expected.
-//    assert((tag_directives_start && tag_directives_end) ||
-//            (tag_directives_start == tag_directives_end))
-//                            // Valid tag directives are expected.
-//
-//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
-//
-//    if (version_directive) {
-//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
-//        if (!version_directive_copy) goto error
-//        version_directive_copy.major = version_directive.major
-//        version_directive_copy.minor = version_directive.minor
-//    }
-//
-//    if (tag_directives_start != tag_directives_end) {
-//        tag_directive *yaml_tag_directive_t
-//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
-//            goto error
-//        for (tag_directive = tag_directives_start
-//                tag_directive != tag_directives_end; tag_directive ++) {
-//            assert(tag_directive.handle)
-//            assert(tag_directive.prefix)
-//            if (!yaml_check_utf8(tag_directive.handle,
-//                        strlen((char *)tag_directive.handle)))
-//                goto error
-//            if (!yaml_check_utf8(tag_directive.prefix,
-//                        strlen((char *)tag_directive.prefix)))
-//                goto error
-//            value.handle = yaml_strdup(tag_directive.handle)
-//            value.prefix = yaml_strdup(tag_directive.prefix)
-//            if (!value.handle || !value.prefix) goto error
-//            if (!PUSH(&context, tag_directives_copy, value))
-//                goto error
-//            value.handle = NULL
-//            value.prefix = NULL
-//        }
-//    }
-//
-//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
-//            tag_directives_copy.start, tag_directives_copy.top,
-//            start_implicit, end_implicit, mark, mark)
-//
-//    return 1
-//
-//error:
-//    STACK_DEL(&context, nodes)
-//    yaml_free(version_directive_copy)
-//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
-//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
-//        yaml_free(value.handle)
-//        yaml_free(value.prefix)
-//    }
-//    STACK_DEL(&context, tag_directives_copy)
-//    yaml_free(value.handle)
-//    yaml_free(value.prefix)
-//
-//    return 0
-//}
-//
-///*
-// * Destroy a document object.
-// */
-//
-//YAML_DECLARE(void)
-//yaml_document_delete(document *yaml_document_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    tag_directive *yaml_tag_directive_t
-//
-//    context.error = YAML_NO_ERROR // Eliminate a compiler warning.
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    while (!STACK_EMPTY(&context, document.nodes)) {
-//        node yaml_node_t = POP(&context, document.nodes)
-//        yaml_free(node.tag)
-//        switch (node.type) {
-//            case YAML_SCALAR_NODE:
-//                yaml_free(node.data.scalar.value)
-//                break
-//            case YAML_SEQUENCE_NODE:
-//                STACK_DEL(&context, node.data.sequence.items)
-//                break
-//            case YAML_MAPPING_NODE:
-//                STACK_DEL(&context, node.data.mapping.pairs)
-//                break
-//            default:
-//                assert(0) // Should not happen.
-//        }
-//    }
-//    STACK_DEL(&context, document.nodes)
-//
-//    yaml_free(document.version_directive)
-//    for (tag_directive = document.tag_directives.start
-//            tag_directive != document.tag_directives.end
-//            tag_directive++) {
-//        yaml_free(tag_directive.handle)
-//        yaml_free(tag_directive.prefix)
-//    }
-//    yaml_free(document.tag_directives.start)
-//
-//    memset(document, 0, sizeof(yaml_document_t))
-//}
-//
-///**
-// * Get a document node.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_node(document *yaml_document_t, index int)
-//{
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
-//        return document.nodes.start + index - 1
-//    }
-//    return NULL
-//}
-//
-///**
-// * Get the root object.
-// */
-//
-//YAML_DECLARE(yaml_node_t *)
-//yaml_document_get_root_node(document *yaml_document_t)
-//{
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (document.nodes.top != document.nodes.start) {
-//        return document.nodes.start
-//    }
-//    return NULL
-//}
-//
-///*
-// * Add a scalar node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_scalar(document *yaml_document_t,
-//        tag *yaml_char_t, value *yaml_char_t, length int,
-//        style yaml_scalar_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    value_copy *yaml_char_t = NULL
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//    assert(value) // Non-NULL value is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (length < 0) {
-//        length = strlen((char *)value)
-//    }
-//
-//    if (!yaml_check_utf8(value, length)) goto error
-//    value_copy = yaml_malloc(length+1)
-//    if (!value_copy) goto error
-//    memcpy(value_copy, value, length)
-//    value_copy[length] = '\0'
-//
-//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    yaml_free(tag_copy)
-//    yaml_free(value_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Add a sequence node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_sequence(document *yaml_document_t,
-//        tag *yaml_char_t, style yaml_sequence_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    struct {
-//        start *yaml_node_item_t
-//        end *yaml_node_item_t
-//        top *yaml_node_item_t
-//    } items = { NULL, NULL, NULL }
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
-//
-//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
-//            style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    STACK_DEL(&context, items)
-//    yaml_free(tag_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Add a mapping node to a document.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_add_mapping(document *yaml_document_t,
-//        tag *yaml_char_t, style yaml_mapping_style_t)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//    mark yaml_mark_t = { 0, 0, 0 }
-//    tag_copy *yaml_char_t = NULL
-//    struct {
-//        start *yaml_node_pair_t
-//        end *yaml_node_pair_t
-//        top *yaml_node_pair_t
-//    } pairs = { NULL, NULL, NULL }
-//    node yaml_node_t
-//
-//    assert(document) // Non-NULL document object is expected.
-//
-//    if (!tag) {
-//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
-//    }
-//
-//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
-//    tag_copy = yaml_strdup(tag)
-//    if (!tag_copy) goto error
-//
-//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
-//
-//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
-//            style, mark, mark)
-//    if (!PUSH(&context, document.nodes, node)) goto error
-//
-//    return document.nodes.top - document.nodes.start
-//
-//error:
-//    STACK_DEL(&context, pairs)
-//    yaml_free(tag_copy)
-//
-//    return 0
-//}
-//
-///*
-// * Append an item to a sequence node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_sequence_item(document *yaml_document_t,
-//        sequence int, item int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//
-//    assert(document) // Non-NULL document is required.
-//    assert(sequence > 0
-//            && document.nodes.start + sequence <= document.nodes.top)
-//                            // Valid sequence id is required.
-//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
-//                            // A sequence node is required.
-//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
-//                            // Valid item id is required.
-//
-//    if (!PUSH(&context,
-//                document.nodes.start[sequence-1].data.sequence.items, item))
-//        return 0
-//
-//    return 1
-//}
-//
-///*
-// * Append a pair of a key and a value to a mapping node.
-// */
-//
-//YAML_DECLARE(int)
-//yaml_document_append_mapping_pair(document *yaml_document_t,
-//        mapping int, key int, value int)
-//{
-//    struct {
-//        error yaml_error_type_t
-//    } context
-//
-//    pair yaml_node_pair_t
-//
-//    assert(document) // Non-NULL document is required.
-//    assert(mapping > 0
-//            && document.nodes.start + mapping <= document.nodes.top)
-//                            // Valid mapping id is required.
-//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
-//                            // A mapping node is required.
-//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
-//                            // Valid key id is required.
-//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
-//                            // Valid value id is required.
-//
-//    pair.key = key
-//    pair.value = value
-//
-//    if (!PUSH(&context,
-//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
-//        return 0
-//
-//    return 1
-//}
-//
-//
diff --git a/vendor/gopkg.in/yaml.v2/decode.go b/vendor/gopkg.in/yaml.v2/decode.go
deleted file mode 100644
index e4e56e2..0000000
--- a/vendor/gopkg.in/yaml.v2/decode.go
+++ /dev/null
@@ -1,775 +0,0 @@
-package yaml
-
-import (
-	"encoding"
-	"encoding/base64"
-	"fmt"
-	"io"
-	"math"
-	"reflect"
-	"strconv"
-	"time"
-)
-
-const (
-	documentNode = 1 << iota
-	mappingNode
-	sequenceNode
-	scalarNode
-	aliasNode
-)
-
-type node struct {
-	kind         int
-	line, column int
-	tag          string
-	// For an alias node, alias holds the resolved alias.
-	alias    *node
-	value    string
-	implicit bool
-	children []*node
-	anchors  map[string]*node
-}
-
-// ----------------------------------------------------------------------------
-// Parser, produces a node tree out of a libyaml event stream.
-
-type parser struct {
-	parser   yaml_parser_t
-	event    yaml_event_t
-	doc      *node
-	doneInit bool
-}
-
-func newParser(b []byte) *parser {
-	p := parser{}
-	if !yaml_parser_initialize(&p.parser) {
-		panic("failed to initialize YAML emitter")
-	}
-	if len(b) == 0 {
-		b = []byte{'\n'}
-	}
-	yaml_parser_set_input_string(&p.parser, b)
-	return &p
-}
-
-func newParserFromReader(r io.Reader) *parser {
-	p := parser{}
-	if !yaml_parser_initialize(&p.parser) {
-		panic("failed to initialize YAML emitter")
-	}
-	yaml_parser_set_input_reader(&p.parser, r)
-	return &p
-}
-
-func (p *parser) init() {
-	if p.doneInit {
-		return
-	}
-	p.expect(yaml_STREAM_START_EVENT)
-	p.doneInit = true
-}
-
-func (p *parser) destroy() {
-	if p.event.typ != yaml_NO_EVENT {
-		yaml_event_delete(&p.event)
-	}
-	yaml_parser_delete(&p.parser)
-}
-
-// expect consumes an event from the event stream and
-// checks that it's of the expected type.
-func (p *parser) expect(e yaml_event_type_t) {
-	if p.event.typ == yaml_NO_EVENT {
-		if !yaml_parser_parse(&p.parser, &p.event) {
-			p.fail()
-		}
-	}
-	if p.event.typ == yaml_STREAM_END_EVENT {
-		failf("attempted to go past the end of stream; corrupted value?")
-	}
-	if p.event.typ != e {
-		p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ)
-		p.fail()
-	}
-	yaml_event_delete(&p.event)
-	p.event.typ = yaml_NO_EVENT
-}
-
-// peek peeks at the next event in the event stream,
-// puts the results into p.event and returns the event type.
-func (p *parser) peek() yaml_event_type_t {
-	if p.event.typ != yaml_NO_EVENT {
-		return p.event.typ
-	}
-	if !yaml_parser_parse(&p.parser, &p.event) {
-		p.fail()
-	}
-	return p.event.typ
-}
-
-func (p *parser) fail() {
-	var where string
-	var line int
-	if p.parser.problem_mark.line != 0 {
-		line = p.parser.problem_mark.line
-		// Scanner errors don't iterate line before returning error
-		if p.parser.error == yaml_SCANNER_ERROR {
-			line++
-		}
-	} else if p.parser.context_mark.line != 0 {
-		line = p.parser.context_mark.line
-	}
-	if line != 0 {
-		where = "line " + strconv.Itoa(line) + ": "
-	}
-	var msg string
-	if len(p.parser.problem) > 0 {
-		msg = p.parser.problem
-	} else {
-		msg = "unknown problem parsing YAML content"
-	}
-	failf("%s%s", where, msg)
-}
-
-func (p *parser) anchor(n *node, anchor []byte) {
-	if anchor != nil {
-		p.doc.anchors[string(anchor)] = n
-	}
-}
-
-func (p *parser) parse() *node {
-	p.init()
-	switch p.peek() {
-	case yaml_SCALAR_EVENT:
-		return p.scalar()
-	case yaml_ALIAS_EVENT:
-		return p.alias()
-	case yaml_MAPPING_START_EVENT:
-		return p.mapping()
-	case yaml_SEQUENCE_START_EVENT:
-		return p.sequence()
-	case yaml_DOCUMENT_START_EVENT:
-		return p.document()
-	case yaml_STREAM_END_EVENT:
-		// Happens when attempting to decode an empty buffer.
-		return nil
-	default:
-		panic("attempted to parse unknown event: " + p.event.typ.String())
-	}
-}
-
-func (p *parser) node(kind int) *node {
-	return &node{
-		kind:   kind,
-		line:   p.event.start_mark.line,
-		column: p.event.start_mark.column,
-	}
-}
-
-func (p *parser) document() *node {
-	n := p.node(documentNode)
-	n.anchors = make(map[string]*node)
-	p.doc = n
-	p.expect(yaml_DOCUMENT_START_EVENT)
-	n.children = append(n.children, p.parse())
-	p.expect(yaml_DOCUMENT_END_EVENT)
-	return n
-}
-
-func (p *parser) alias() *node {
-	n := p.node(aliasNode)
-	n.value = string(p.event.anchor)
-	n.alias = p.doc.anchors[n.value]
-	if n.alias == nil {
-		failf("unknown anchor '%s' referenced", n.value)
-	}
-	p.expect(yaml_ALIAS_EVENT)
-	return n
-}
-
-func (p *parser) scalar() *node {
-	n := p.node(scalarNode)
-	n.value = string(p.event.value)
-	n.tag = string(p.event.tag)
-	n.implicit = p.event.implicit
-	p.anchor(n, p.event.anchor)
-	p.expect(yaml_SCALAR_EVENT)
-	return n
-}
-
-func (p *parser) sequence() *node {
-	n := p.node(sequenceNode)
-	p.anchor(n, p.event.anchor)
-	p.expect(yaml_SEQUENCE_START_EVENT)
-	for p.peek() != yaml_SEQUENCE_END_EVENT {
-		n.children = append(n.children, p.parse())
-	}
-	p.expect(yaml_SEQUENCE_END_EVENT)
-	return n
-}
-
-func (p *parser) mapping() *node {
-	n := p.node(mappingNode)
-	p.anchor(n, p.event.anchor)
-	p.expect(yaml_MAPPING_START_EVENT)
-	for p.peek() != yaml_MAPPING_END_EVENT {
-		n.children = append(n.children, p.parse(), p.parse())
-	}
-	p.expect(yaml_MAPPING_END_EVENT)
-	return n
-}
-
-// ----------------------------------------------------------------------------
-// Decoder, unmarshals a node into a provided value.
-
-type decoder struct {
-	doc     *node
-	aliases map[*node]bool
-	mapType reflect.Type
-	terrors []string
-	strict  bool
-}
-
-var (
-	mapItemType    = reflect.TypeOf(MapItem{})
-	durationType   = reflect.TypeOf(time.Duration(0))
-	defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
-	ifaceType      = defaultMapType.Elem()
-	timeType       = reflect.TypeOf(time.Time{})
-	ptrTimeType    = reflect.TypeOf(&time.Time{})
-)
-
-func newDecoder(strict bool) *decoder {
-	d := &decoder{mapType: defaultMapType, strict: strict}
-	d.aliases = make(map[*node]bool)
-	return d
-}
-
-func (d *decoder) terror(n *node, tag string, out reflect.Value) {
-	if n.tag != "" {
-		tag = n.tag
-	}
-	value := n.value
-	if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
-		if len(value) > 10 {
-			value = " `" + value[:7] + "...`"
-		} else {
-			value = " `" + value + "`"
-		}
-	}
-	d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
-}
-
-func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
-	terrlen := len(d.terrors)
-	err := u.UnmarshalYAML(func(v interface{}) (err error) {
-		defer handleErr(&err)
-		d.unmarshal(n, reflect.ValueOf(v))
-		if len(d.terrors) > terrlen {
-			issues := d.terrors[terrlen:]
-			d.terrors = d.terrors[:terrlen]
-			return &TypeError{issues}
-		}
-		return nil
-	})
-	if e, ok := err.(*TypeError); ok {
-		d.terrors = append(d.terrors, e.Errors...)
-		return false
-	}
-	if err != nil {
-		fail(err)
-	}
-	return true
-}
-
-// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
-// if a value is found to implement it.
-// It returns the initialized and dereferenced out value, whether
-// unmarshalling was already done by UnmarshalYAML, and if so whether
-// its types unmarshalled appropriately.
-//
-// If n holds a null value, prepare returns before doing anything.
-func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
-	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) {
-		return out, false, false
-	}
-	again := true
-	for again {
-		again = false
-		if out.Kind() == reflect.Ptr {
-			if out.IsNil() {
-				out.Set(reflect.New(out.Type().Elem()))
-			}
-			out = out.Elem()
-			again = true
-		}
-		if out.CanAddr() {
-			if u, ok := out.Addr().Interface().(Unmarshaler); ok {
-				good = d.callUnmarshaler(n, u)
-				return out, true, good
-			}
-		}
-	}
-	return out, false, false
-}
-
-func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
-	switch n.kind {
-	case documentNode:
-		return d.document(n, out)
-	case aliasNode:
-		return d.alias(n, out)
-	}
-	out, unmarshaled, good := d.prepare(n, out)
-	if unmarshaled {
-		return good
-	}
-	switch n.kind {
-	case scalarNode:
-		good = d.scalar(n, out)
-	case mappingNode:
-		good = d.mapping(n, out)
-	case sequenceNode:
-		good = d.sequence(n, out)
-	default:
-		panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
-	}
-	return good
-}
-
-func (d *decoder) document(n *node, out reflect.Value) (good bool) {
-	if len(n.children) == 1 {
-		d.doc = n
-		d.unmarshal(n.children[0], out)
-		return true
-	}
-	return false
-}
-
-func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
-	if d.aliases[n] {
-		// TODO this could actually be allowed in some circumstances.
-		failf("anchor '%s' value contains itself", n.value)
-	}
-	d.aliases[n] = true
-	good = d.unmarshal(n.alias, out)
-	delete(d.aliases, n)
-	return good
-}
-
-var zeroValue reflect.Value
-
-func resetMap(out reflect.Value) {
-	for _, k := range out.MapKeys() {
-		out.SetMapIndex(k, zeroValue)
-	}
-}
-
-func (d *decoder) scalar(n *node, out reflect.Value) bool {
-	var tag string
-	var resolved interface{}
-	if n.tag == "" && !n.implicit {
-		tag = yaml_STR_TAG
-		resolved = n.value
-	} else {
-		tag, resolved = resolve(n.tag, n.value)
-		if tag == yaml_BINARY_TAG {
-			data, err := base64.StdEncoding.DecodeString(resolved.(string))
-			if err != nil {
-				failf("!!binary value contains invalid base64 data")
-			}
-			resolved = string(data)
-		}
-	}
-	if resolved == nil {
-		if out.Kind() == reflect.Map && !out.CanAddr() {
-			resetMap(out)
-		} else {
-			out.Set(reflect.Zero(out.Type()))
-		}
-		return true
-	}
-	if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
-		// We've resolved to exactly the type we want, so use that.
-		out.Set(resolvedv)
-		return true
-	}
-	// Perhaps we can use the value as a TextUnmarshaler to
-	// set its value.
-	if out.CanAddr() {
-		u, ok := out.Addr().Interface().(encoding.TextUnmarshaler)
-		if ok {
-			var text []byte
-			if tag == yaml_BINARY_TAG {
-				text = []byte(resolved.(string))
-			} else {
-				// We let any value be unmarshaled into TextUnmarshaler.
-				// That might be more lax than we'd like, but the
-				// TextUnmarshaler itself should bowl out any dubious values.
-				text = []byte(n.value)
-			}
-			err := u.UnmarshalText(text)
-			if err != nil {
-				fail(err)
-			}
-			return true
-		}
-	}
-	switch out.Kind() {
-	case reflect.String:
-		if tag == yaml_BINARY_TAG {
-			out.SetString(resolved.(string))
-			return true
-		}
-		if resolved != nil {
-			out.SetString(n.value)
-			return true
-		}
-	case reflect.Interface:
-		if resolved == nil {
-			out.Set(reflect.Zero(out.Type()))
-		} else if tag == yaml_TIMESTAMP_TAG {
-			// It looks like a timestamp but for backward compatibility
-			// reasons we set it as a string, so that code that unmarshals
-			// timestamp-like values into interface{} will continue to
-			// see a string and not a time.Time.
-			// TODO(v3) Drop this.
-			out.Set(reflect.ValueOf(n.value))
-		} else {
-			out.Set(reflect.ValueOf(resolved))
-		}
-		return true
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		switch resolved := resolved.(type) {
-		case int:
-			if !out.OverflowInt(int64(resolved)) {
-				out.SetInt(int64(resolved))
-				return true
-			}
-		case int64:
-			if !out.OverflowInt(resolved) {
-				out.SetInt(resolved)
-				return true
-			}
-		case uint64:
-			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
-				out.SetInt(int64(resolved))
-				return true
-			}
-		case float64:
-			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
-				out.SetInt(int64(resolved))
-				return true
-			}
-		case string:
-			if out.Type() == durationType {
-				d, err := time.ParseDuration(resolved)
-				if err == nil {
-					out.SetInt(int64(d))
-					return true
-				}
-			}
-		}
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		switch resolved := resolved.(type) {
-		case int:
-			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
-				out.SetUint(uint64(resolved))
-				return true
-			}
-		case int64:
-			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
-				out.SetUint(uint64(resolved))
-				return true
-			}
-		case uint64:
-			if !out.OverflowUint(uint64(resolved)) {
-				out.SetUint(uint64(resolved))
-				return true
-			}
-		case float64:
-			if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
-				out.SetUint(uint64(resolved))
-				return true
-			}
-		}
-	case reflect.Bool:
-		switch resolved := resolved.(type) {
-		case bool:
-			out.SetBool(resolved)
-			return true
-		}
-	case reflect.Float32, reflect.Float64:
-		switch resolved := resolved.(type) {
-		case int:
-			out.SetFloat(float64(resolved))
-			return true
-		case int64:
-			out.SetFloat(float64(resolved))
-			return true
-		case uint64:
-			out.SetFloat(float64(resolved))
-			return true
-		case float64:
-			out.SetFloat(resolved)
-			return true
-		}
-	case reflect.Struct:
-		if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
-			out.Set(resolvedv)
-			return true
-		}
-	case reflect.Ptr:
-		if out.Type().Elem() == reflect.TypeOf(resolved) {
-			// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
-			elem := reflect.New(out.Type().Elem())
-			elem.Elem().Set(reflect.ValueOf(resolved))
-			out.Set(elem)
-			return true
-		}
-	}
-	d.terror(n, tag, out)
-	return false
-}
-
-func settableValueOf(i interface{}) reflect.Value {
-	v := reflect.ValueOf(i)
-	sv := reflect.New(v.Type()).Elem()
-	sv.Set(v)
-	return sv
-}
-
-func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
-	l := len(n.children)
-
-	var iface reflect.Value
-	switch out.Kind() {
-	case reflect.Slice:
-		out.Set(reflect.MakeSlice(out.Type(), l, l))
-	case reflect.Array:
-		if l != out.Len() {
-			failf("invalid array: want %d elements but got %d", out.Len(), l)
-		}
-	case reflect.Interface:
-		// No type hints. Will have to use a generic sequence.
-		iface = out
-		out = settableValueOf(make([]interface{}, l))
-	default:
-		d.terror(n, yaml_SEQ_TAG, out)
-		return false
-	}
-	et := out.Type().Elem()
-
-	j := 0
-	for i := 0; i < l; i++ {
-		e := reflect.New(et).Elem()
-		if ok := d.unmarshal(n.children[i], e); ok {
-			out.Index(j).Set(e)
-			j++
-		}
-	}
-	if out.Kind() != reflect.Array {
-		out.Set(out.Slice(0, j))
-	}
-	if iface.IsValid() {
-		iface.Set(out)
-	}
-	return true
-}
-
-func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
-	switch out.Kind() {
-	case reflect.Struct:
-		return d.mappingStruct(n, out)
-	case reflect.Slice:
-		return d.mappingSlice(n, out)
-	case reflect.Map:
-		// okay
-	case reflect.Interface:
-		if d.mapType.Kind() == reflect.Map {
-			iface := out
-			out = reflect.MakeMap(d.mapType)
-			iface.Set(out)
-		} else {
-			slicev := reflect.New(d.mapType).Elem()
-			if !d.mappingSlice(n, slicev) {
-				return false
-			}
-			out.Set(slicev)
-			return true
-		}
-	default:
-		d.terror(n, yaml_MAP_TAG, out)
-		return false
-	}
-	outt := out.Type()
-	kt := outt.Key()
-	et := outt.Elem()
-
-	mapType := d.mapType
-	if outt.Key() == ifaceType && outt.Elem() == ifaceType {
-		d.mapType = outt
-	}
-
-	if out.IsNil() {
-		out.Set(reflect.MakeMap(outt))
-	}
-	l := len(n.children)
-	for i := 0; i < l; i += 2 {
-		if isMerge(n.children[i]) {
-			d.merge(n.children[i+1], out)
-			continue
-		}
-		k := reflect.New(kt).Elem()
-		if d.unmarshal(n.children[i], k) {
-			kkind := k.Kind()
-			if kkind == reflect.Interface {
-				kkind = k.Elem().Kind()
-			}
-			if kkind == reflect.Map || kkind == reflect.Slice {
-				failf("invalid map key: %#v", k.Interface())
-			}
-			e := reflect.New(et).Elem()
-			if d.unmarshal(n.children[i+1], e) {
-				d.setMapIndex(n.children[i+1], out, k, e)
-			}
-		}
-	}
-	d.mapType = mapType
-	return true
-}
-
-func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) {
-	if d.strict && out.MapIndex(k) != zeroValue {
-		d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface()))
-		return
-	}
-	out.SetMapIndex(k, v)
-}
-
-func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
-	outt := out.Type()
-	if outt.Elem() != mapItemType {
-		d.terror(n, yaml_MAP_TAG, out)
-		return false
-	}
-
-	mapType := d.mapType
-	d.mapType = outt
-
-	var slice []MapItem
-	var l = len(n.children)
-	for i := 0; i < l; i += 2 {
-		if isMerge(n.children[i]) {
-			d.merge(n.children[i+1], out)
-			continue
-		}
-		item := MapItem{}
-		k := reflect.ValueOf(&item.Key).Elem()
-		if d.unmarshal(n.children[i], k) {
-			v := reflect.ValueOf(&item.Value).Elem()
-			if d.unmarshal(n.children[i+1], v) {
-				slice = append(slice, item)
-			}
-		}
-	}
-	out.Set(reflect.ValueOf(slice))
-	d.mapType = mapType
-	return true
-}
-
-func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
-	sinfo, err := getStructInfo(out.Type())
-	if err != nil {
-		panic(err)
-	}
-	name := settableValueOf("")
-	l := len(n.children)
-
-	var inlineMap reflect.Value
-	var elemType reflect.Type
-	if sinfo.InlineMap != -1 {
-		inlineMap = out.Field(sinfo.InlineMap)
-		inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
-		elemType = inlineMap.Type().Elem()
-	}
-
-	var doneFields []bool
-	if d.strict {
-		doneFields = make([]bool, len(sinfo.FieldsList))
-	}
-	for i := 0; i < l; i += 2 {
-		ni := n.children[i]
-		if isMerge(ni) {
-			d.merge(n.children[i+1], out)
-			continue
-		}
-		if !d.unmarshal(ni, name) {
-			continue
-		}
-		if info, ok := sinfo.FieldsMap[name.String()]; ok {
-			if d.strict {
-				if doneFields[info.Id] {
-					d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type()))
-					continue
-				}
-				doneFields[info.Id] = true
-			}
-			var field reflect.Value
-			if info.Inline == nil {
-				field = out.Field(info.Num)
-			} else {
-				field = out.FieldByIndex(info.Inline)
-			}
-			d.unmarshal(n.children[i+1], field)
-		} else if sinfo.InlineMap != -1 {
-			if inlineMap.IsNil() {
-				inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
-			}
-			value := reflect.New(elemType).Elem()
-			d.unmarshal(n.children[i+1], value)
-			d.setMapIndex(n.children[i+1], inlineMap, name, value)
-		} else if d.strict {
-			d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type()))
-		}
-	}
-	return true
-}
-
-func failWantMap() {
-	failf("map merge requires map or sequence of maps as the value")
-}
-
-func (d *decoder) merge(n *node, out reflect.Value) {
-	switch n.kind {
-	case mappingNode:
-		d.unmarshal(n, out)
-	case aliasNode:
-		an, ok := d.doc.anchors[n.value]
-		if ok && an.kind != mappingNode {
-			failWantMap()
-		}
-		d.unmarshal(n, out)
-	case sequenceNode:
-		// Step backwards as earlier nodes take precedence.
-		for i := len(n.children) - 1; i >= 0; i-- {
-			ni := n.children[i]
-			if ni.kind == aliasNode {
-				an, ok := d.doc.anchors[ni.value]
-				if ok && an.kind != mappingNode {
-					failWantMap()
-				}
-			} else if ni.kind != mappingNode {
-				failWantMap()
-			}
-			d.unmarshal(ni, out)
-		}
-	default:
-		failWantMap()
-	}
-}
-
-func isMerge(n *node) bool {
-	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
-}
diff --git a/vendor/gopkg.in/yaml.v2/emitterc.go b/vendor/gopkg.in/yaml.v2/emitterc.go
deleted file mode 100644
index a1c2cc5..0000000
--- a/vendor/gopkg.in/yaml.v2/emitterc.go
+++ /dev/null
@@ -1,1685 +0,0 @@
-package yaml
-
-import (
-	"bytes"
-	"fmt"
-)
-
-// Flush the buffer if needed.
-func flush(emitter *yaml_emitter_t) bool {
-	if emitter.buffer_pos+5 >= len(emitter.buffer) {
-		return yaml_emitter_flush(emitter)
-	}
-	return true
-}
-
-// Put a character to the output buffer.
-func put(emitter *yaml_emitter_t, value byte) bool {
-	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
-		return false
-	}
-	emitter.buffer[emitter.buffer_pos] = value
-	emitter.buffer_pos++
-	emitter.column++
-	return true
-}
-
-// Put a line break to the output buffer.
-func put_break(emitter *yaml_emitter_t) bool {
-	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
-		return false
-	}
-	switch emitter.line_break {
-	case yaml_CR_BREAK:
-		emitter.buffer[emitter.buffer_pos] = '\r'
-		emitter.buffer_pos += 1
-	case yaml_LN_BREAK:
-		emitter.buffer[emitter.buffer_pos] = '\n'
-		emitter.buffer_pos += 1
-	case yaml_CRLN_BREAK:
-		emitter.buffer[emitter.buffer_pos+0] = '\r'
-		emitter.buffer[emitter.buffer_pos+1] = '\n'
-		emitter.buffer_pos += 2
-	default:
-		panic("unknown line break setting")
-	}
-	emitter.column = 0
-	emitter.line++
-	return true
-}
-
-// Copy a character from a string into buffer.
-func write(emitter *yaml_emitter_t, s []byte, i *int) bool {
-	if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
-		return false
-	}
-	p := emitter.buffer_pos
-	w := width(s[*i])
-	switch w {
-	case 4:
-		emitter.buffer[p+3] = s[*i+3]
-		fallthrough
-	case 3:
-		emitter.buffer[p+2] = s[*i+2]
-		fallthrough
-	case 2:
-		emitter.buffer[p+1] = s[*i+1]
-		fallthrough
-	case 1:
-		emitter.buffer[p+0] = s[*i+0]
-	default:
-		panic("unknown character width")
-	}
-	emitter.column++
-	emitter.buffer_pos += w
-	*i += w
-	return true
-}
-
-// Write a whole string into buffer.
-func write_all(emitter *yaml_emitter_t, s []byte) bool {
-	for i := 0; i < len(s); {
-		if !write(emitter, s, &i) {
-			return false
-		}
-	}
-	return true
-}
-
-// Copy a line break character from a string into buffer.
-func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool {
-	if s[*i] == '\n' {
-		if !put_break(emitter) {
-			return false
-		}
-		*i++
-	} else {
-		if !write(emitter, s, i) {
-			return false
-		}
-		emitter.column = 0
-		emitter.line++
-	}
-	return true
-}
-
-// Set an emitter error and return false.
-func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool {
-	emitter.error = yaml_EMITTER_ERROR
-	emitter.problem = problem
-	return false
-}
-
-// Emit an event.
-func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	emitter.events = append(emitter.events, *event)
-	for !yaml_emitter_need_more_events(emitter) {
-		event := &emitter.events[emitter.events_head]
-		if !yaml_emitter_analyze_event(emitter, event) {
-			return false
-		}
-		if !yaml_emitter_state_machine(emitter, event) {
-			return false
-		}
-		yaml_event_delete(event)
-		emitter.events_head++
-	}
-	return true
-}
-
-// Check if we need to accumulate more events before emitting.
-//
-// We accumulate extra
-//  - 1 event for DOCUMENT-START
-//  - 2 events for SEQUENCE-START
-//  - 3 events for MAPPING-START
-//
-func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool {
-	if emitter.events_head == len(emitter.events) {
-		return true
-	}
-	var accumulate int
-	switch emitter.events[emitter.events_head].typ {
-	case yaml_DOCUMENT_START_EVENT:
-		accumulate = 1
-		break
-	case yaml_SEQUENCE_START_EVENT:
-		accumulate = 2
-		break
-	case yaml_MAPPING_START_EVENT:
-		accumulate = 3
-		break
-	default:
-		return false
-	}
-	if len(emitter.events)-emitter.events_head > accumulate {
-		return false
-	}
-	var level int
-	for i := emitter.events_head; i < len(emitter.events); i++ {
-		switch emitter.events[i].typ {
-		case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT:
-			level++
-		case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT:
-			level--
-		}
-		if level == 0 {
-			return false
-		}
-	}
-	return true
-}
-
-// Append a directive to the directives stack.
-func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool {
-	for i := 0; i < len(emitter.tag_directives); i++ {
-		if bytes.Equal(value.handle, emitter.tag_directives[i].handle) {
-			if allow_duplicates {
-				return true
-			}
-			return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive")
-		}
-	}
-
-	// [Go] Do we actually need to copy this given garbage collection
-	// and the lack of deallocating destructors?
-	tag_copy := yaml_tag_directive_t{
-		handle: make([]byte, len(value.handle)),
-		prefix: make([]byte, len(value.prefix)),
-	}
-	copy(tag_copy.handle, value.handle)
-	copy(tag_copy.prefix, value.prefix)
-	emitter.tag_directives = append(emitter.tag_directives, tag_copy)
-	return true
-}
-
-// Increase the indentation level.
-func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool {
-	emitter.indents = append(emitter.indents, emitter.indent)
-	if emitter.indent < 0 {
-		if flow {
-			emitter.indent = emitter.best_indent
-		} else {
-			emitter.indent = 0
-		}
-	} else if !indentless {
-		emitter.indent += emitter.best_indent
-	}
-	return true
-}
-
-// State dispatcher.
-func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	switch emitter.state {
-	default:
-	case yaml_EMIT_STREAM_START_STATE:
-		return yaml_emitter_emit_stream_start(emitter, event)
-
-	case yaml_EMIT_FIRST_DOCUMENT_START_STATE:
-		return yaml_emitter_emit_document_start(emitter, event, true)
-
-	case yaml_EMIT_DOCUMENT_START_STATE:
-		return yaml_emitter_emit_document_start(emitter, event, false)
-
-	case yaml_EMIT_DOCUMENT_CONTENT_STATE:
-		return yaml_emitter_emit_document_content(emitter, event)
-
-	case yaml_EMIT_DOCUMENT_END_STATE:
-		return yaml_emitter_emit_document_end(emitter, event)
-
-	case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
-		return yaml_emitter_emit_flow_sequence_item(emitter, event, true)
-
-	case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE:
-		return yaml_emitter_emit_flow_sequence_item(emitter, event, false)
-
-	case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
-		return yaml_emitter_emit_flow_mapping_key(emitter, event, true)
-
-	case yaml_EMIT_FLOW_MAPPING_KEY_STATE:
-		return yaml_emitter_emit_flow_mapping_key(emitter, event, false)
-
-	case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
-		return yaml_emitter_emit_flow_mapping_value(emitter, event, true)
-
-	case yaml_EMIT_FLOW_MAPPING_VALUE_STATE:
-		return yaml_emitter_emit_flow_mapping_value(emitter, event, false)
-
-	case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
-		return yaml_emitter_emit_block_sequence_item(emitter, event, true)
-
-	case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
-		return yaml_emitter_emit_block_sequence_item(emitter, event, false)
-
-	case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
-		return yaml_emitter_emit_block_mapping_key(emitter, event, true)
-
-	case yaml_EMIT_BLOCK_MAPPING_KEY_STATE:
-		return yaml_emitter_emit_block_mapping_key(emitter, event, false)
-
-	case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
-		return yaml_emitter_emit_block_mapping_value(emitter, event, true)
-
-	case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE:
-		return yaml_emitter_emit_block_mapping_value(emitter, event, false)
-
-	case yaml_EMIT_END_STATE:
-		return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END")
-	}
-	panic("invalid emitter state")
-}
-
-// Expect STREAM-START.
-func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if event.typ != yaml_STREAM_START_EVENT {
-		return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START")
-	}
-	if emitter.encoding == yaml_ANY_ENCODING {
-		emitter.encoding = event.encoding
-		if emitter.encoding == yaml_ANY_ENCODING {
-			emitter.encoding = yaml_UTF8_ENCODING
-		}
-	}
-	if emitter.best_indent < 2 || emitter.best_indent > 9 {
-		emitter.best_indent = 2
-	}
-	if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 {
-		emitter.best_width = 80
-	}
-	if emitter.best_width < 0 {
-		emitter.best_width = 1<<31 - 1
-	}
-	if emitter.line_break == yaml_ANY_BREAK {
-		emitter.line_break = yaml_LN_BREAK
-	}
-
-	emitter.indent = -1
-	emitter.line = 0
-	emitter.column = 0
-	emitter.whitespace = true
-	emitter.indention = true
-
-	if emitter.encoding != yaml_UTF8_ENCODING {
-		if !yaml_emitter_write_bom(emitter) {
-			return false
-		}
-	}
-	emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE
-	return true
-}
-
-// Expect DOCUMENT-START or STREAM-END.
-func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-
-	if event.typ == yaml_DOCUMENT_START_EVENT {
-
-		if event.version_directive != nil {
-			if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) {
-				return false
-			}
-		}
-
-		for i := 0; i < len(event.tag_directives); i++ {
-			tag_directive := &event.tag_directives[i]
-			if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) {
-				return false
-			}
-			if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) {
-				return false
-			}
-		}
-
-		for i := 0; i < len(default_tag_directives); i++ {
-			tag_directive := &default_tag_directives[i]
-			if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) {
-				return false
-			}
-		}
-
-		implicit := event.implicit
-		if !first || emitter.canonical {
-			implicit = false
-		}
-
-		if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) {
-			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-
-		if event.version_directive != nil {
-			implicit = false
-			if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-
-		if len(event.tag_directives) > 0 {
-			implicit = false
-			for i := 0; i < len(event.tag_directives); i++ {
-				tag_directive := &event.tag_directives[i]
-				if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) {
-					return false
-				}
-				if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) {
-					return false
-				}
-				if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) {
-					return false
-				}
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-			}
-		}
-
-		if yaml_emitter_check_empty_document(emitter) {
-			implicit = false
-		}
-		if !implicit {
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-			if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) {
-				return false
-			}
-			if emitter.canonical {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-			}
-		}
-
-		emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE
-		return true
-	}
-
-	if event.typ == yaml_STREAM_END_EVENT {
-		if emitter.open_ended {
-			if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-		if !yaml_emitter_flush(emitter) {
-			return false
-		}
-		emitter.state = yaml_EMIT_END_STATE
-		return true
-	}
-
-	return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END")
-}
-
-// Expect the root node.
-func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE)
-	return yaml_emitter_emit_node(emitter, event, true, false, false, false)
-}
-
-// Expect DOCUMENT-END.
-func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if event.typ != yaml_DOCUMENT_END_EVENT {
-		return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END")
-	}
-	if !yaml_emitter_write_indent(emitter) {
-		return false
-	}
-	if !event.implicit {
-		// [Go] Allocate the slice elsewhere.
-		if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
-			return false
-		}
-		if !yaml_emitter_write_indent(emitter) {
-			return false
-		}
-	}
-	if !yaml_emitter_flush(emitter) {
-		return false
-	}
-	emitter.state = yaml_EMIT_DOCUMENT_START_STATE
-	emitter.tag_directives = emitter.tag_directives[:0]
-	return true
-}
-
-// Expect a flow item node.
-func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-	if first {
-		if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) {
-			return false
-		}
-		if !yaml_emitter_increase_indent(emitter, true, false) {
-			return false
-		}
-		emitter.flow_level++
-	}
-
-	if event.typ == yaml_SEQUENCE_END_EVENT {
-		emitter.flow_level--
-		emitter.indent = emitter.indents[len(emitter.indents)-1]
-		emitter.indents = emitter.indents[:len(emitter.indents)-1]
-		if emitter.canonical && !first {
-			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-		if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) {
-			return false
-		}
-		emitter.state = emitter.states[len(emitter.states)-1]
-		emitter.states = emitter.states[:len(emitter.states)-1]
-
-		return true
-	}
-
-	if !first {
-		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
-			return false
-		}
-	}
-
-	if emitter.canonical || emitter.column > emitter.best_width {
-		if !yaml_emitter_write_indent(emitter) {
-			return false
-		}
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
-}
-
-// Expect a flow key node.
-func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-	if first {
-		if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) {
-			return false
-		}
-		if !yaml_emitter_increase_indent(emitter, true, false) {
-			return false
-		}
-		emitter.flow_level++
-	}
-
-	if event.typ == yaml_MAPPING_END_EVENT {
-		emitter.flow_level--
-		emitter.indent = emitter.indents[len(emitter.indents)-1]
-		emitter.indents = emitter.indents[:len(emitter.indents)-1]
-		if emitter.canonical && !first {
-			if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
-				return false
-			}
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-		if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) {
-			return false
-		}
-		emitter.state = emitter.states[len(emitter.states)-1]
-		emitter.states = emitter.states[:len(emitter.states)-1]
-		return true
-	}
-
-	if !first {
-		if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
-			return false
-		}
-	}
-	if emitter.canonical || emitter.column > emitter.best_width {
-		if !yaml_emitter_write_indent(emitter) {
-			return false
-		}
-	}
-
-	if !emitter.canonical && yaml_emitter_check_simple_key(emitter) {
-		emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)
-		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
-	}
-	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) {
-		return false
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a flow value node.
-func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
-	if simple {
-		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
-			return false
-		}
-	} else {
-		if emitter.canonical || emitter.column > emitter.best_width {
-			if !yaml_emitter_write_indent(emitter) {
-				return false
-			}
-		}
-		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) {
-			return false
-		}
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a block item node.
-func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-	if first {
-		if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) {
-			return false
-		}
-	}
-	if event.typ == yaml_SEQUENCE_END_EVENT {
-		emitter.indent = emitter.indents[len(emitter.indents)-1]
-		emitter.indents = emitter.indents[:len(emitter.indents)-1]
-		emitter.state = emitter.states[len(emitter.states)-1]
-		emitter.states = emitter.states[:len(emitter.states)-1]
-		return true
-	}
-	if !yaml_emitter_write_indent(emitter) {
-		return false
-	}
-	if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) {
-		return false
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, true, false, false)
-}
-
-// Expect a block key node.
-func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
-	if first {
-		if !yaml_emitter_increase_indent(emitter, false, false) {
-			return false
-		}
-	}
-	if event.typ == yaml_MAPPING_END_EVENT {
-		emitter.indent = emitter.indents[len(emitter.indents)-1]
-		emitter.indents = emitter.indents[:len(emitter.indents)-1]
-		emitter.state = emitter.states[len(emitter.states)-1]
-		emitter.states = emitter.states[:len(emitter.states)-1]
-		return true
-	}
-	if !yaml_emitter_write_indent(emitter) {
-		return false
-	}
-	if yaml_emitter_check_simple_key(emitter) {
-		emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)
-		return yaml_emitter_emit_node(emitter, event, false, false, true, true)
-	}
-	if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) {
-		return false
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a block value node.
-func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
-	if simple {
-		if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
-			return false
-		}
-	} else {
-		if !yaml_emitter_write_indent(emitter) {
-			return false
-		}
-		if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) {
-			return false
-		}
-	}
-	emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE)
-	return yaml_emitter_emit_node(emitter, event, false, false, true, false)
-}
-
-// Expect a node.
-func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t,
-	root bool, sequence bool, mapping bool, simple_key bool) bool {
-
-	emitter.root_context = root
-	emitter.sequence_context = sequence
-	emitter.mapping_context = mapping
-	emitter.simple_key_context = simple_key
-
-	switch event.typ {
-	case yaml_ALIAS_EVENT:
-		return yaml_emitter_emit_alias(emitter, event)
-	case yaml_SCALAR_EVENT:
-		return yaml_emitter_emit_scalar(emitter, event)
-	case yaml_SEQUENCE_START_EVENT:
-		return yaml_emitter_emit_sequence_start(emitter, event)
-	case yaml_MAPPING_START_EVENT:
-		return yaml_emitter_emit_mapping_start(emitter, event)
-	default:
-		return yaml_emitter_set_emitter_error(emitter,
-			fmt.Sprintf("expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS, but got %v", event.typ))
-	}
-}
-
-// Expect ALIAS.
-func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if !yaml_emitter_process_anchor(emitter) {
-		return false
-	}
-	emitter.state = emitter.states[len(emitter.states)-1]
-	emitter.states = emitter.states[:len(emitter.states)-1]
-	return true
-}
-
-// Expect SCALAR.
-func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if !yaml_emitter_select_scalar_style(emitter, event) {
-		return false
-	}
-	if !yaml_emitter_process_anchor(emitter) {
-		return false
-	}
-	if !yaml_emitter_process_tag(emitter) {
-		return false
-	}
-	if !yaml_emitter_increase_indent(emitter, true, false) {
-		return false
-	}
-	if !yaml_emitter_process_scalar(emitter) {
-		return false
-	}
-	emitter.indent = emitter.indents[len(emitter.indents)-1]
-	emitter.indents = emitter.indents[:len(emitter.indents)-1]
-	emitter.state = emitter.states[len(emitter.states)-1]
-	emitter.states = emitter.states[:len(emitter.states)-1]
-	return true
-}
-
-// Expect SEQUENCE-START.
-func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if !yaml_emitter_process_anchor(emitter) {
-		return false
-	}
-	if !yaml_emitter_process_tag(emitter) {
-		return false
-	}
-	if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE ||
-		yaml_emitter_check_empty_sequence(emitter) {
-		emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
-	} else {
-		emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
-	}
-	return true
-}
-
-// Expect MAPPING-START.
-func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-	if !yaml_emitter_process_anchor(emitter) {
-		return false
-	}
-	if !yaml_emitter_process_tag(emitter) {
-		return false
-	}
-	if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE ||
-		yaml_emitter_check_empty_mapping(emitter) {
-		emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
-	} else {
-		emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
-	}
-	return true
-}
-
-// Check if the document content is an empty scalar.
-func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool {
-	return false // [Go] Huh?
-}
-
-// Check if the next events represent an empty sequence.
-func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool {
-	if len(emitter.events)-emitter.events_head < 2 {
-		return false
-	}
-	return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT &&
-		emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT
-}
-
-// Check if the next events represent an empty mapping.
-func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool {
-	if len(emitter.events)-emitter.events_head < 2 {
-		return false
-	}
-	return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT &&
-		emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT
-}
-
-// Check if the next node can be expressed as a simple key.
-func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool {
-	length := 0
-	switch emitter.events[emitter.events_head].typ {
-	case yaml_ALIAS_EVENT:
-		length += len(emitter.anchor_data.anchor)
-	case yaml_SCALAR_EVENT:
-		if emitter.scalar_data.multiline {
-			return false
-		}
-		length += len(emitter.anchor_data.anchor) +
-			len(emitter.tag_data.handle) +
-			len(emitter.tag_data.suffix) +
-			len(emitter.scalar_data.value)
-	case yaml_SEQUENCE_START_EVENT:
-		if !yaml_emitter_check_empty_sequence(emitter) {
-			return false
-		}
-		length += len(emitter.anchor_data.anchor) +
-			len(emitter.tag_data.handle) +
-			len(emitter.tag_data.suffix)
-	case yaml_MAPPING_START_EVENT:
-		if !yaml_emitter_check_empty_mapping(emitter) {
-			return false
-		}
-		length += len(emitter.anchor_data.anchor) +
-			len(emitter.tag_data.handle) +
-			len(emitter.tag_data.suffix)
-	default:
-		return false
-	}
-	return length <= 128
-}
-
-// Determine an acceptable scalar style.
-func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-
-	no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0
-	if no_tag && !event.implicit && !event.quoted_implicit {
-		return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified")
-	}
-
-	style := event.scalar_style()
-	if style == yaml_ANY_SCALAR_STYLE {
-		style = yaml_PLAIN_SCALAR_STYLE
-	}
-	if emitter.canonical {
-		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-	}
-	if emitter.simple_key_context && emitter.scalar_data.multiline {
-		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-	}
-
-	if style == yaml_PLAIN_SCALAR_STYLE {
-		if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed ||
-			emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed {
-			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
-		}
-		if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) {
-			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
-		}
-		if no_tag && !event.implicit {
-			style = yaml_SINGLE_QUOTED_SCALAR_STYLE
-		}
-	}
-	if style == yaml_SINGLE_QUOTED_SCALAR_STYLE {
-		if !emitter.scalar_data.single_quoted_allowed {
-			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-		}
-	}
-	if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE {
-		if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context {
-			style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-		}
-	}
-
-	if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE {
-		emitter.tag_data.handle = []byte{'!'}
-	}
-	emitter.scalar_data.style = style
-	return true
-}
-
-// Write an anchor.
-func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool {
-	if emitter.anchor_data.anchor == nil {
-		return true
-	}
-	c := []byte{'&'}
-	if emitter.anchor_data.alias {
-		c[0] = '*'
-	}
-	if !yaml_emitter_write_indicator(emitter, c, true, false, false) {
-		return false
-	}
-	return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor)
-}
-
-// Write a tag.
-func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool {
-	if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 {
-		return true
-	}
-	if len(emitter.tag_data.handle) > 0 {
-		if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) {
-			return false
-		}
-		if len(emitter.tag_data.suffix) > 0 {
-			if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
-				return false
-			}
-		}
-	} else {
-		// [Go] Allocate these slices elsewhere.
-		if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) {
-			return false
-		}
-		if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
-			return false
-		}
-		if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) {
-			return false
-		}
-	}
-	return true
-}
-
-// Write a scalar.
-func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool {
-	switch emitter.scalar_data.style {
-	case yaml_PLAIN_SCALAR_STYLE:
-		return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
-	case yaml_SINGLE_QUOTED_SCALAR_STYLE:
-		return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
-	case yaml_DOUBLE_QUOTED_SCALAR_STYLE:
-		return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
-
-	case yaml_LITERAL_SCALAR_STYLE:
-		return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value)
-
-	case yaml_FOLDED_SCALAR_STYLE:
-		return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value)
-	}
-	panic("unknown scalar style")
-}
-
-// Check if a %YAML directive is valid.
-func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool {
-	if version_directive.major != 1 || version_directive.minor != 1 {
-		return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive")
-	}
-	return true
-}
-
-// Check if a %TAG directive is valid.
-func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool {
-	handle := tag_directive.handle
-	prefix := tag_directive.prefix
-	if len(handle) == 0 {
-		return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty")
-	}
-	if handle[0] != '!' {
-		return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'")
-	}
-	if handle[len(handle)-1] != '!' {
-		return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'")
-	}
-	for i := 1; i < len(handle)-1; i += width(handle[i]) {
-		if !is_alpha(handle, i) {
-			return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only")
-		}
-	}
-	if len(prefix) == 0 {
-		return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty")
-	}
-	return true
-}
-
-// Check if an anchor is valid.
-func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool {
-	if len(anchor) == 0 {
-		problem := "anchor value must not be empty"
-		if alias {
-			problem = "alias value must not be empty"
-		}
-		return yaml_emitter_set_emitter_error(emitter, problem)
-	}
-	for i := 0; i < len(anchor); i += width(anchor[i]) {
-		if !is_alpha(anchor, i) {
-			problem := "anchor value must contain alphanumerical characters only"
-			if alias {
-				problem = "alias value must contain alphanumerical characters only"
-			}
-			return yaml_emitter_set_emitter_error(emitter, problem)
-		}
-	}
-	emitter.anchor_data.anchor = anchor
-	emitter.anchor_data.alias = alias
-	return true
-}
-
-// Check if a tag is valid.
-func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
-	if len(tag) == 0 {
-		return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty")
-	}
-	for i := 0; i < len(emitter.tag_directives); i++ {
-		tag_directive := &emitter.tag_directives[i]
-		if bytes.HasPrefix(tag, tag_directive.prefix) {
-			emitter.tag_data.handle = tag_directive.handle
-			emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
-			return true
-		}
-	}
-	emitter.tag_data.suffix = tag
-	return true
-}
-
-// Check if a scalar is valid.
-func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool {
-	var (
-		block_indicators   = false
-		flow_indicators    = false
-		line_breaks        = false
-		special_characters = false
-
-		leading_space  = false
-		leading_break  = false
-		trailing_space = false
-		trailing_break = false
-		break_space    = false
-		space_break    = false
-
-		preceded_by_whitespace = false
-		followed_by_whitespace = false
-		previous_space         = false
-		previous_break         = false
-	)
-
-	emitter.scalar_data.value = value
-
-	if len(value) == 0 {
-		emitter.scalar_data.multiline = false
-		emitter.scalar_data.flow_plain_allowed = false
-		emitter.scalar_data.block_plain_allowed = true
-		emitter.scalar_data.single_quoted_allowed = true
-		emitter.scalar_data.block_allowed = false
-		return true
-	}
-
-	if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) {
-		block_indicators = true
-		flow_indicators = true
-	}
-
-	preceded_by_whitespace = true
-	for i, w := 0, 0; i < len(value); i += w {
-		w = width(value[i])
-		followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w)
-
-		if i == 0 {
-			switch value[i] {
-			case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`':
-				flow_indicators = true
-				block_indicators = true
-			case '?', ':':
-				flow_indicators = true
-				if followed_by_whitespace {
-					block_indicators = true
-				}
-			case '-':
-				if followed_by_whitespace {
-					flow_indicators = true
-					block_indicators = true
-				}
-			}
-		} else {
-			switch value[i] {
-			case ',', '?', '[', ']', '{', '}':
-				flow_indicators = true
-			case ':':
-				flow_indicators = true
-				if followed_by_whitespace {
-					block_indicators = true
-				}
-			case '#':
-				if preceded_by_whitespace {
-					flow_indicators = true
-					block_indicators = true
-				}
-			}
-		}
-
-		if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode {
-			special_characters = true
-		}
-		if is_space(value, i) {
-			if i == 0 {
-				leading_space = true
-			}
-			if i+width(value[i]) == len(value) {
-				trailing_space = true
-			}
-			if previous_break {
-				break_space = true
-			}
-			previous_space = true
-			previous_break = false
-		} else if is_break(value, i) {
-			line_breaks = true
-			if i == 0 {
-				leading_break = true
-			}
-			if i+width(value[i]) == len(value) {
-				trailing_break = true
-			}
-			if previous_space {
-				space_break = true
-			}
-			previous_space = false
-			previous_break = true
-		} else {
-			previous_space = false
-			previous_break = false
-		}
-
-		// [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition.
-		preceded_by_whitespace = is_blankz(value, i)
-	}
-
-	emitter.scalar_data.multiline = line_breaks
-	emitter.scalar_data.flow_plain_allowed = true
-	emitter.scalar_data.block_plain_allowed = true
-	emitter.scalar_data.single_quoted_allowed = true
-	emitter.scalar_data.block_allowed = true
-
-	if leading_space || leading_break || trailing_space || trailing_break {
-		emitter.scalar_data.flow_plain_allowed = false
-		emitter.scalar_data.block_plain_allowed = false
-	}
-	if trailing_space {
-		emitter.scalar_data.block_allowed = false
-	}
-	if break_space {
-		emitter.scalar_data.flow_plain_allowed = false
-		emitter.scalar_data.block_plain_allowed = false
-		emitter.scalar_data.single_quoted_allowed = false
-	}
-	if space_break || special_characters {
-		emitter.scalar_data.flow_plain_allowed = false
-		emitter.scalar_data.block_plain_allowed = false
-		emitter.scalar_data.single_quoted_allowed = false
-		emitter.scalar_data.block_allowed = false
-	}
-	if line_breaks {
-		emitter.scalar_data.flow_plain_allowed = false
-		emitter.scalar_data.block_plain_allowed = false
-	}
-	if flow_indicators {
-		emitter.scalar_data.flow_plain_allowed = false
-	}
-	if block_indicators {
-		emitter.scalar_data.block_plain_allowed = false
-	}
-	return true
-}
-
-// Check if the event data is valid.
-func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool {
-
-	emitter.anchor_data.anchor = nil
-	emitter.tag_data.handle = nil
-	emitter.tag_data.suffix = nil
-	emitter.scalar_data.value = nil
-
-	switch event.typ {
-	case yaml_ALIAS_EVENT:
-		if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) {
-			return false
-		}
-
-	case yaml_SCALAR_EVENT:
-		if len(event.anchor) > 0 {
-			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
-				return false
-			}
-		}
-		if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) {
-			if !yaml_emitter_analyze_tag(emitter, event.tag) {
-				return false
-			}
-		}
-		if !yaml_emitter_analyze_scalar(emitter, event.value) {
-			return false
-		}
-
-	case yaml_SEQUENCE_START_EVENT:
-		if len(event.anchor) > 0 {
-			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
-				return false
-			}
-		}
-		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
-			if !yaml_emitter_analyze_tag(emitter, event.tag) {
-				return false
-			}
-		}
-
-	case yaml_MAPPING_START_EVENT:
-		if len(event.anchor) > 0 {
-			if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
-				return false
-			}
-		}
-		if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
-			if !yaml_emitter_analyze_tag(emitter, event.tag) {
-				return false
-			}
-		}
-	}
-	return true
-}
-
-// Write the BOM character.
-func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool {
-	if !flush(emitter) {
-		return false
-	}
-	pos := emitter.buffer_pos
-	emitter.buffer[pos+0] = '\xEF'
-	emitter.buffer[pos+1] = '\xBB'
-	emitter.buffer[pos+2] = '\xBF'
-	emitter.buffer_pos += 3
-	return true
-}
-
-func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool {
-	indent := emitter.indent
-	if indent < 0 {
-		indent = 0
-	}
-	if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) {
-		if !put_break(emitter) {
-			return false
-		}
-	}
-	for emitter.column < indent {
-		if !put(emitter, ' ') {
-			return false
-		}
-	}
-	emitter.whitespace = true
-	emitter.indention = true
-	return true
-}
-
-func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool {
-	if need_whitespace && !emitter.whitespace {
-		if !put(emitter, ' ') {
-			return false
-		}
-	}
-	if !write_all(emitter, indicator) {
-		return false
-	}
-	emitter.whitespace = is_whitespace
-	emitter.indention = (emitter.indention && is_indention)
-	emitter.open_ended = false
-	return true
-}
-
-func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool {
-	if !write_all(emitter, value) {
-		return false
-	}
-	emitter.whitespace = false
-	emitter.indention = false
-	return true
-}
-
-func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool {
-	if !emitter.whitespace {
-		if !put(emitter, ' ') {
-			return false
-		}
-	}
-	if !write_all(emitter, value) {
-		return false
-	}
-	emitter.whitespace = false
-	emitter.indention = false
-	return true
-}
-
-func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool {
-	if need_whitespace && !emitter.whitespace {
-		if !put(emitter, ' ') {
-			return false
-		}
-	}
-	for i := 0; i < len(value); {
-		var must_write bool
-		switch value[i] {
-		case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']':
-			must_write = true
-		default:
-			must_write = is_alpha(value, i)
-		}
-		if must_write {
-			if !write(emitter, value, &i) {
-				return false
-			}
-		} else {
-			w := width(value[i])
-			for k := 0; k < w; k++ {
-				octet := value[i]
-				i++
-				if !put(emitter, '%') {
-					return false
-				}
-
-				c := octet >> 4
-				if c < 10 {
-					c += '0'
-				} else {
-					c += 'A' - 10
-				}
-				if !put(emitter, c) {
-					return false
-				}
-
-				c = octet & 0x0f
-				if c < 10 {
-					c += '0'
-				} else {
-					c += 'A' - 10
-				}
-				if !put(emitter, c) {
-					return false
-				}
-			}
-		}
-	}
-	emitter.whitespace = false
-	emitter.indention = false
-	return true
-}
-
-func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
-	if !emitter.whitespace {
-		if !put(emitter, ' ') {
-			return false
-		}
-	}
-
-	spaces := false
-	breaks := false
-	for i := 0; i < len(value); {
-		if is_space(value, i) {
-			if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-				i += width(value[i])
-			} else {
-				if !write(emitter, value, &i) {
-					return false
-				}
-			}
-			spaces = true
-		} else if is_break(value, i) {
-			if !breaks && value[i] == '\n' {
-				if !put_break(emitter) {
-					return false
-				}
-			}
-			if !write_break(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = true
-			breaks = true
-		} else {
-			if breaks {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-			}
-			if !write(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = false
-			spaces = false
-			breaks = false
-		}
-	}
-
-	emitter.whitespace = false
-	emitter.indention = false
-	if emitter.root_context {
-		emitter.open_ended = true
-	}
-
-	return true
-}
-
-func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
-
-	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) {
-		return false
-	}
-
-	spaces := false
-	breaks := false
-	for i := 0; i < len(value); {
-		if is_space(value, i) {
-			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-				i += width(value[i])
-			} else {
-				if !write(emitter, value, &i) {
-					return false
-				}
-			}
-			spaces = true
-		} else if is_break(value, i) {
-			if !breaks && value[i] == '\n' {
-				if !put_break(emitter) {
-					return false
-				}
-			}
-			if !write_break(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = true
-			breaks = true
-		} else {
-			if breaks {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-			}
-			if value[i] == '\'' {
-				if !put(emitter, '\'') {
-					return false
-				}
-			}
-			if !write(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = false
-			spaces = false
-			breaks = false
-		}
-	}
-	if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) {
-		return false
-	}
-	emitter.whitespace = false
-	emitter.indention = false
-	return true
-}
-
-func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
-	spaces := false
-	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) {
-		return false
-	}
-
-	for i := 0; i < len(value); {
-		if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) ||
-			is_bom(value, i) || is_break(value, i) ||
-			value[i] == '"' || value[i] == '\\' {
-
-			octet := value[i]
-
-			var w int
-			var v rune
-			switch {
-			case octet&0x80 == 0x00:
-				w, v = 1, rune(octet&0x7F)
-			case octet&0xE0 == 0xC0:
-				w, v = 2, rune(octet&0x1F)
-			case octet&0xF0 == 0xE0:
-				w, v = 3, rune(octet&0x0F)
-			case octet&0xF8 == 0xF0:
-				w, v = 4, rune(octet&0x07)
-			}
-			for k := 1; k < w; k++ {
-				octet = value[i+k]
-				v = (v << 6) + (rune(octet) & 0x3F)
-			}
-			i += w
-
-			if !put(emitter, '\\') {
-				return false
-			}
-
-			var ok bool
-			switch v {
-			case 0x00:
-				ok = put(emitter, '0')
-			case 0x07:
-				ok = put(emitter, 'a')
-			case 0x08:
-				ok = put(emitter, 'b')
-			case 0x09:
-				ok = put(emitter, 't')
-			case 0x0A:
-				ok = put(emitter, 'n')
-			case 0x0b:
-				ok = put(emitter, 'v')
-			case 0x0c:
-				ok = put(emitter, 'f')
-			case 0x0d:
-				ok = put(emitter, 'r')
-			case 0x1b:
-				ok = put(emitter, 'e')
-			case 0x22:
-				ok = put(emitter, '"')
-			case 0x5c:
-				ok = put(emitter, '\\')
-			case 0x85:
-				ok = put(emitter, 'N')
-			case 0xA0:
-				ok = put(emitter, '_')
-			case 0x2028:
-				ok = put(emitter, 'L')
-			case 0x2029:
-				ok = put(emitter, 'P')
-			default:
-				if v <= 0xFF {
-					ok = put(emitter, 'x')
-					w = 2
-				} else if v <= 0xFFFF {
-					ok = put(emitter, 'u')
-					w = 4
-				} else {
-					ok = put(emitter, 'U')
-					w = 8
-				}
-				for k := (w - 1) * 4; ok && k >= 0; k -= 4 {
-					digit := byte((v >> uint(k)) & 0x0F)
-					if digit < 10 {
-						ok = put(emitter, digit+'0')
-					} else {
-						ok = put(emitter, digit+'A'-10)
-					}
-				}
-			}
-			if !ok {
-				return false
-			}
-			spaces = false
-		} else if is_space(value, i) {
-			if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-				if is_space(value, i+1) {
-					if !put(emitter, '\\') {
-						return false
-					}
-				}
-				i += width(value[i])
-			} else if !write(emitter, value, &i) {
-				return false
-			}
-			spaces = true
-		} else {
-			if !write(emitter, value, &i) {
-				return false
-			}
-			spaces = false
-		}
-	}
-	if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) {
-		return false
-	}
-	emitter.whitespace = false
-	emitter.indention = false
-	return true
-}
-
-func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool {
-	if is_space(value, 0) || is_break(value, 0) {
-		indent_hint := []byte{'0' + byte(emitter.best_indent)}
-		if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) {
-			return false
-		}
-	}
-
-	emitter.open_ended = false
-
-	var chomp_hint [1]byte
-	if len(value) == 0 {
-		chomp_hint[0] = '-'
-	} else {
-		i := len(value) - 1
-		for value[i]&0xC0 == 0x80 {
-			i--
-		}
-		if !is_break(value, i) {
-			chomp_hint[0] = '-'
-		} else if i == 0 {
-			chomp_hint[0] = '+'
-			emitter.open_ended = true
-		} else {
-			i--
-			for value[i]&0xC0 == 0x80 {
-				i--
-			}
-			if is_break(value, i) {
-				chomp_hint[0] = '+'
-				emitter.open_ended = true
-			}
-		}
-	}
-	if chomp_hint[0] != 0 {
-		if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) {
-			return false
-		}
-	}
-	return true
-}
-
-func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool {
-	if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) {
-		return false
-	}
-	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
-		return false
-	}
-	if !put_break(emitter) {
-		return false
-	}
-	emitter.indention = true
-	emitter.whitespace = true
-	breaks := true
-	for i := 0; i < len(value); {
-		if is_break(value, i) {
-			if !write_break(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = true
-			breaks = true
-		} else {
-			if breaks {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-			}
-			if !write(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = false
-			breaks = false
-		}
-	}
-
-	return true
-}
-
-func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool {
-	if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) {
-		return false
-	}
-	if !yaml_emitter_write_block_scalar_hints(emitter, value) {
-		return false
-	}
-
-	if !put_break(emitter) {
-		return false
-	}
-	emitter.indention = true
-	emitter.whitespace = true
-
-	breaks := true
-	leading_spaces := true
-	for i := 0; i < len(value); {
-		if is_break(value, i) {
-			if !breaks && !leading_spaces && value[i] == '\n' {
-				k := 0
-				for is_break(value, k) {
-					k += width(value[k])
-				}
-				if !is_blankz(value, k) {
-					if !put_break(emitter) {
-						return false
-					}
-				}
-			}
-			if !write_break(emitter, value, &i) {
-				return false
-			}
-			emitter.indention = true
-			breaks = true
-		} else {
-			if breaks {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-				leading_spaces = is_blank(value, i)
-			}
-			if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width {
-				if !yaml_emitter_write_indent(emitter) {
-					return false
-				}
-				i += width(value[i])
-			} else {
-				if !write(emitter, value, &i) {
-					return false
-				}
-			}
-			emitter.indention = false
-			breaks = false
-		}
-	}
-	return true
-}
diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go
deleted file mode 100644
index a14435e..0000000
--- a/vendor/gopkg.in/yaml.v2/encode.go
+++ /dev/null
@@ -1,362 +0,0 @@
-package yaml
-
-import (
-	"encoding"
-	"fmt"
-	"io"
-	"reflect"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-	"unicode/utf8"
-)
-
-type encoder struct {
-	emitter yaml_emitter_t
-	event   yaml_event_t
-	out     []byte
-	flow    bool
-	// doneInit holds whether the initial stream_start_event has been
-	// emitted.
-	doneInit bool
-}
-
-func newEncoder() *encoder {
-	e := &encoder{}
-	yaml_emitter_initialize(&e.emitter)
-	yaml_emitter_set_output_string(&e.emitter, &e.out)
-	yaml_emitter_set_unicode(&e.emitter, true)
-	return e
-}
-
-func newEncoderWithWriter(w io.Writer) *encoder {
-	e := &encoder{}
-	yaml_emitter_initialize(&e.emitter)
-	yaml_emitter_set_output_writer(&e.emitter, w)
-	yaml_emitter_set_unicode(&e.emitter, true)
-	return e
-}
-
-func (e *encoder) init() {
-	if e.doneInit {
-		return
-	}
-	yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
-	e.emit()
-	e.doneInit = true
-}
-
-func (e *encoder) finish() {
-	e.emitter.open_ended = false
-	yaml_stream_end_event_initialize(&e.event)
-	e.emit()
-}
-
-func (e *encoder) destroy() {
-	yaml_emitter_delete(&e.emitter)
-}
-
-func (e *encoder) emit() {
-	// This will internally delete the e.event value.
-	e.must(yaml_emitter_emit(&e.emitter, &e.event))
-}
-
-func (e *encoder) must(ok bool) {
-	if !ok {
-		msg := e.emitter.problem
-		if msg == "" {
-			msg = "unknown problem generating YAML content"
-		}
-		failf("%s", msg)
-	}
-}
-
-func (e *encoder) marshalDoc(tag string, in reflect.Value) {
-	e.init()
-	yaml_document_start_event_initialize(&e.event, nil, nil, true)
-	e.emit()
-	e.marshal(tag, in)
-	yaml_document_end_event_initialize(&e.event, true)
-	e.emit()
-}
-
-func (e *encoder) marshal(tag string, in reflect.Value) {
-	if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
-		e.nilv()
-		return
-	}
-	iface := in.Interface()
-	switch m := iface.(type) {
-	case time.Time, *time.Time:
-		// Although time.Time implements TextMarshaler,
-		// we don't want to treat it as a string for YAML
-		// purposes because YAML has special support for
-		// timestamps.
-	case Marshaler:
-		v, err := m.MarshalYAML()
-		if err != nil {
-			fail(err)
-		}
-		if v == nil {
-			e.nilv()
-			return
-		}
-		in = reflect.ValueOf(v)
-	case encoding.TextMarshaler:
-		text, err := m.MarshalText()
-		if err != nil {
-			fail(err)
-		}
-		in = reflect.ValueOf(string(text))
-	case nil:
-		e.nilv()
-		return
-	}
-	switch in.Kind() {
-	case reflect.Interface:
-		e.marshal(tag, in.Elem())
-	case reflect.Map:
-		e.mapv(tag, in)
-	case reflect.Ptr:
-		if in.Type() == ptrTimeType {
-			e.timev(tag, in.Elem())
-		} else {
-			e.marshal(tag, in.Elem())
-		}
-	case reflect.Struct:
-		if in.Type() == timeType {
-			e.timev(tag, in)
-		} else {
-			e.structv(tag, in)
-		}
-	case reflect.Slice, reflect.Array:
-		if in.Type().Elem() == mapItemType {
-			e.itemsv(tag, in)
-		} else {
-			e.slicev(tag, in)
-		}
-	case reflect.String:
-		e.stringv(tag, in)
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		if in.Type() == durationType {
-			e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
-		} else {
-			e.intv(tag, in)
-		}
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		e.uintv(tag, in)
-	case reflect.Float32, reflect.Float64:
-		e.floatv(tag, in)
-	case reflect.Bool:
-		e.boolv(tag, in)
-	default:
-		panic("cannot marshal type: " + in.Type().String())
-	}
-}
-
-func (e *encoder) mapv(tag string, in reflect.Value) {
-	e.mappingv(tag, func() {
-		keys := keyList(in.MapKeys())
-		sort.Sort(keys)
-		for _, k := range keys {
-			e.marshal("", k)
-			e.marshal("", in.MapIndex(k))
-		}
-	})
-}
-
-func (e *encoder) itemsv(tag string, in reflect.Value) {
-	e.mappingv(tag, func() {
-		slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
-		for _, item := range slice {
-			e.marshal("", reflect.ValueOf(item.Key))
-			e.marshal("", reflect.ValueOf(item.Value))
-		}
-	})
-}
-
-func (e *encoder) structv(tag string, in reflect.Value) {
-	sinfo, err := getStructInfo(in.Type())
-	if err != nil {
-		panic(err)
-	}
-	e.mappingv(tag, func() {
-		for _, info := range sinfo.FieldsList {
-			var value reflect.Value
-			if info.Inline == nil {
-				value = in.Field(info.Num)
-			} else {
-				value = in.FieldByIndex(info.Inline)
-			}
-			if info.OmitEmpty && isZero(value) {
-				continue
-			}
-			e.marshal("", reflect.ValueOf(info.Key))
-			e.flow = info.Flow
-			e.marshal("", value)
-		}
-		if sinfo.InlineMap >= 0 {
-			m := in.Field(sinfo.InlineMap)
-			if m.Len() > 0 {
-				e.flow = false
-				keys := keyList(m.MapKeys())
-				sort.Sort(keys)
-				for _, k := range keys {
-					if _, found := sinfo.FieldsMap[k.String()]; found {
-						panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
-					}
-					e.marshal("", k)
-					e.flow = false
-					e.marshal("", m.MapIndex(k))
-				}
-			}
-		}
-	})
-}
-
-func (e *encoder) mappingv(tag string, f func()) {
-	implicit := tag == ""
-	style := yaml_BLOCK_MAPPING_STYLE
-	if e.flow {
-		e.flow = false
-		style = yaml_FLOW_MAPPING_STYLE
-	}
-	yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
-	e.emit()
-	f()
-	yaml_mapping_end_event_initialize(&e.event)
-	e.emit()
-}
-
-func (e *encoder) slicev(tag string, in reflect.Value) {
-	implicit := tag == ""
-	style := yaml_BLOCK_SEQUENCE_STYLE
-	if e.flow {
-		e.flow = false
-		style = yaml_FLOW_SEQUENCE_STYLE
-	}
-	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
-	e.emit()
-	n := in.Len()
-	for i := 0; i < n; i++ {
-		e.marshal("", in.Index(i))
-	}
-	e.must(yaml_sequence_end_event_initialize(&e.event))
-	e.emit()
-}
-
-// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
-//
-// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
-// in YAML 1.2 and by this package, but these should be marshalled quoted for
-// the time being for compatibility with other parsers.
-func isBase60Float(s string) (result bool) {
-	// Fast path.
-	if s == "" {
-		return false
-	}
-	c := s[0]
-	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
-		return false
-	}
-	// Do the full match.
-	return base60float.MatchString(s)
-}
-
-// From http://yaml.org/type/float.html, except the regular expression there
-// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
-var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
-
-func (e *encoder) stringv(tag string, in reflect.Value) {
-	var style yaml_scalar_style_t
-	s := in.String()
-	canUsePlain := true
-	switch {
-	case !utf8.ValidString(s):
-		if tag == yaml_BINARY_TAG {
-			failf("explicitly tagged !!binary data must be base64-encoded")
-		}
-		if tag != "" {
-			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
-		}
-		// It can't be encoded directly as YAML so use a binary tag
-		// and encode it as base64.
-		tag = yaml_BINARY_TAG
-		s = encodeBase64(s)
-	case tag == "":
-		// Check to see if it would resolve to a specific
-		// tag when encoded unquoted. If it doesn't,
-		// there's no need to quote it.
-		rtag, _ := resolve("", s)
-		canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s)
-	}
-	// Note: it's possible for user code to emit invalid YAML
-	// if they explicitly specify a tag and a string containing
-	// text that's incompatible with that tag.
-	switch {
-	case strings.Contains(s, "\n"):
-		style = yaml_LITERAL_SCALAR_STYLE
-	case canUsePlain:
-		style = yaml_PLAIN_SCALAR_STYLE
-	default:
-		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-	}
-	e.emitScalar(s, "", tag, style)
-}
-
-func (e *encoder) boolv(tag string, in reflect.Value) {
-	var s string
-	if in.Bool() {
-		s = "true"
-	} else {
-		s = "false"
-	}
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) intv(tag string, in reflect.Value) {
-	s := strconv.FormatInt(in.Int(), 10)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) uintv(tag string, in reflect.Value) {
-	s := strconv.FormatUint(in.Uint(), 10)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) timev(tag string, in reflect.Value) {
-	t := in.Interface().(time.Time)
-	s := t.Format(time.RFC3339Nano)
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) floatv(tag string, in reflect.Value) {
-	// Issue #352: When formatting, use the precision of the underlying value
-	precision := 64
-	if in.Kind() == reflect.Float32 {
-		precision = 32
-	}
-
-	s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
-	switch s {
-	case "+Inf":
-		s = ".inf"
-	case "-Inf":
-		s = "-.inf"
-	case "NaN":
-		s = ".nan"
-	}
-	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) nilv() {
-	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
-}
-
-func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
-	implicit := tag == ""
-	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
-	e.emit()
-}
diff --git a/vendor/gopkg.in/yaml.v2/go.mod b/vendor/gopkg.in/yaml.v2/go.mod
deleted file mode 100644
index 1934e87..0000000
--- a/vendor/gopkg.in/yaml.v2/go.mod
+++ /dev/null
@@ -1,5 +0,0 @@
-module "gopkg.in/yaml.v2"
-
-require (
-	"gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405
-)
diff --git a/vendor/gopkg.in/yaml.v2/parserc.go b/vendor/gopkg.in/yaml.v2/parserc.go
deleted file mode 100644
index 81d05df..0000000
--- a/vendor/gopkg.in/yaml.v2/parserc.go
+++ /dev/null
@@ -1,1095 +0,0 @@
-package yaml
-
-import (
-	"bytes"
-)
-
-// The parser implements the following grammar:
-//
-// stream               ::= STREAM-START implicit_document? explicit_document* STREAM-END
-// implicit_document    ::= block_node DOCUMENT-END*
-// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-// block_node_or_indentless_sequence    ::=
-//                          ALIAS
-//                          | properties (block_content | indentless_block_sequence)?
-//                          | block_content
-//                          | indentless_block_sequence
-// block_node           ::= ALIAS
-//                          | properties block_content?
-//                          | block_content
-// flow_node            ::= ALIAS
-//                          | properties flow_content?
-//                          | flow_content
-// properties           ::= TAG ANCHOR? | ANCHOR TAG?
-// block_content        ::= block_collection | flow_collection | SCALAR
-// flow_content         ::= flow_collection | SCALAR
-// block_collection     ::= block_sequence | block_mapping
-// flow_collection      ::= flow_sequence | flow_mapping
-// block_sequence       ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
-// block_mapping        ::= BLOCK-MAPPING_START
-//                          ((KEY block_node_or_indentless_sequence?)?
-//                          (VALUE block_node_or_indentless_sequence?)?)*
-//                          BLOCK-END
-// flow_sequence        ::= FLOW-SEQUENCE-START
-//                          (flow_sequence_entry FLOW-ENTRY)*
-//                          flow_sequence_entry?
-//                          FLOW-SEQUENCE-END
-// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-// flow_mapping         ::= FLOW-MAPPING-START
-//                          (flow_mapping_entry FLOW-ENTRY)*
-//                          flow_mapping_entry?
-//                          FLOW-MAPPING-END
-// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-
-// Peek the next token in the token queue.
-func peek_token(parser *yaml_parser_t) *yaml_token_t {
-	if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
-		return &parser.tokens[parser.tokens_head]
-	}
-	return nil
-}
-
-// Remove the next token from the queue (must be called after peek_token).
-func skip_token(parser *yaml_parser_t) {
-	parser.token_available = false
-	parser.tokens_parsed++
-	parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
-	parser.tokens_head++
-}
-
-// Get the next event.
-func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
-	// Erase the event object.
-	*event = yaml_event_t{}
-
-	// No events after the end of the stream or error.
-	if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
-		return true
-	}
-
-	// Generate the next event.
-	return yaml_parser_state_machine(parser, event)
-}
-
-// Set parser error.
-func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
-	parser.error = yaml_PARSER_ERROR
-	parser.problem = problem
-	parser.problem_mark = problem_mark
-	return false
-}
-
-func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool {
-	parser.error = yaml_PARSER_ERROR
-	parser.context = context
-	parser.context_mark = context_mark
-	parser.problem = problem
-	parser.problem_mark = problem_mark
-	return false
-}
-
-// State dispatcher.
-func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
-	//trace("yaml_parser_state_machine", "state:", parser.state.String())
-
-	switch parser.state {
-	case yaml_PARSE_STREAM_START_STATE:
-		return yaml_parser_parse_stream_start(parser, event)
-
-	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
-		return yaml_parser_parse_document_start(parser, event, true)
-
-	case yaml_PARSE_DOCUMENT_START_STATE:
-		return yaml_parser_parse_document_start(parser, event, false)
-
-	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
-		return yaml_parser_parse_document_content(parser, event)
-
-	case yaml_PARSE_DOCUMENT_END_STATE:
-		return yaml_parser_parse_document_end(parser, event)
-
-	case yaml_PARSE_BLOCK_NODE_STATE:
-		return yaml_parser_parse_node(parser, event, true, false)
-
-	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
-		return yaml_parser_parse_node(parser, event, true, true)
-
-	case yaml_PARSE_FLOW_NODE_STATE:
-		return yaml_parser_parse_node(parser, event, false, false)
-
-	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
-		return yaml_parser_parse_block_sequence_entry(parser, event, true)
-
-	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
-		return yaml_parser_parse_block_sequence_entry(parser, event, false)
-
-	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
-		return yaml_parser_parse_indentless_sequence_entry(parser, event)
-
-	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
-		return yaml_parser_parse_block_mapping_key(parser, event, true)
-
-	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
-		return yaml_parser_parse_block_mapping_key(parser, event, false)
-
-	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
-		return yaml_parser_parse_block_mapping_value(parser, event)
-
-	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
-		return yaml_parser_parse_flow_sequence_entry(parser, event, true)
-
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
-		return yaml_parser_parse_flow_sequence_entry(parser, event, false)
-
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
-		return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
-
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
-		return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
-
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
-		return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
-
-	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
-		return yaml_parser_parse_flow_mapping_key(parser, event, true)
-
-	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
-		return yaml_parser_parse_flow_mapping_key(parser, event, false)
-
-	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
-		return yaml_parser_parse_flow_mapping_value(parser, event, false)
-
-	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
-		return yaml_parser_parse_flow_mapping_value(parser, event, true)
-
-	default:
-		panic("invalid parser state")
-	}
-}
-
-// Parse the production:
-// stream   ::= STREAM-START implicit_document? explicit_document* STREAM-END
-//              ************
-func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ != yaml_STREAM_START_TOKEN {
-		return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
-	}
-	parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
-	*event = yaml_event_t{
-		typ:        yaml_STREAM_START_EVENT,
-		start_mark: token.start_mark,
-		end_mark:   token.end_mark,
-		encoding:   token.encoding,
-	}
-	skip_token(parser)
-	return true
-}
-
-// Parse the productions:
-// implicit_document    ::= block_node DOCUMENT-END*
-//                          *
-// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-//                          *************************
-func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	// Parse extra document end indicators.
-	if !implicit {
-		for token.typ == yaml_DOCUMENT_END_TOKEN {
-			skip_token(parser)
-			token = peek_token(parser)
-			if token == nil {
-				return false
-			}
-		}
-	}
-
-	if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
-		token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
-		token.typ != yaml_DOCUMENT_START_TOKEN &&
-		token.typ != yaml_STREAM_END_TOKEN {
-		// Parse an implicit document.
-		if !yaml_parser_process_directives(parser, nil, nil) {
-			return false
-		}
-		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
-		parser.state = yaml_PARSE_BLOCK_NODE_STATE
-
-		*event = yaml_event_t{
-			typ:        yaml_DOCUMENT_START_EVENT,
-			start_mark: token.start_mark,
-			end_mark:   token.end_mark,
-		}
-
-	} else if token.typ != yaml_STREAM_END_TOKEN {
-		// Parse an explicit document.
-		var version_directive *yaml_version_directive_t
-		var tag_directives []yaml_tag_directive_t
-		start_mark := token.start_mark
-		if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
-			return false
-		}
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_DOCUMENT_START_TOKEN {
-			yaml_parser_set_parser_error(parser,
-				"did not find expected <document start>", token.start_mark)
-			return false
-		}
-		parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
-		parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
-		end_mark := token.end_mark
-
-		*event = yaml_event_t{
-			typ:               yaml_DOCUMENT_START_EVENT,
-			start_mark:        start_mark,
-			end_mark:          end_mark,
-			version_directive: version_directive,
-			tag_directives:    tag_directives,
-			implicit:          false,
-		}
-		skip_token(parser)
-
-	} else {
-		// Parse the stream end.
-		parser.state = yaml_PARSE_END_STATE
-		*event = yaml_event_t{
-			typ:        yaml_STREAM_END_EVENT,
-			start_mark: token.start_mark,
-			end_mark:   token.end_mark,
-		}
-		skip_token(parser)
-	}
-
-	return true
-}
-
-// Parse the productions:
-// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-//                                                    ***********
-//
-func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
-		token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
-		token.typ == yaml_DOCUMENT_START_TOKEN ||
-		token.typ == yaml_DOCUMENT_END_TOKEN ||
-		token.typ == yaml_STREAM_END_TOKEN {
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-		return yaml_parser_process_empty_scalar(parser, event,
-			token.start_mark)
-	}
-	return yaml_parser_parse_node(parser, event, true, false)
-}
-
-// Parse the productions:
-// implicit_document    ::= block_node DOCUMENT-END*
-//                                     *************
-// explicit_document    ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-//
-func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	start_mark := token.start_mark
-	end_mark := token.start_mark
-
-	implicit := true
-	if token.typ == yaml_DOCUMENT_END_TOKEN {
-		end_mark = token.end_mark
-		skip_token(parser)
-		implicit = false
-	}
-
-	parser.tag_directives = parser.tag_directives[:0]
-
-	parser.state = yaml_PARSE_DOCUMENT_START_STATE
-	*event = yaml_event_t{
-		typ:        yaml_DOCUMENT_END_EVENT,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		implicit:   implicit,
-	}
-	return true
-}
-
-// Parse the productions:
-// block_node_or_indentless_sequence    ::=
-//                          ALIAS
-//                          *****
-//                          | properties (block_content | indentless_block_sequence)?
-//                            **********  *
-//                          | block_content | indentless_block_sequence
-//                            *
-// block_node           ::= ALIAS
-//                          *****
-//                          | properties block_content?
-//                            ********** *
-//                          | block_content
-//                            *
-// flow_node            ::= ALIAS
-//                          *****
-//                          | properties flow_content?
-//                            ********** *
-//                          | flow_content
-//                            *
-// properties           ::= TAG ANCHOR? | ANCHOR TAG?
-//                          *************************
-// block_content        ::= block_collection | flow_collection | SCALAR
-//                                                               ******
-// flow_content         ::= flow_collection | SCALAR
-//                                            ******
-func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
-	//defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	if token.typ == yaml_ALIAS_TOKEN {
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-		*event = yaml_event_t{
-			typ:        yaml_ALIAS_EVENT,
-			start_mark: token.start_mark,
-			end_mark:   token.end_mark,
-			anchor:     token.value,
-		}
-		skip_token(parser)
-		return true
-	}
-
-	start_mark := token.start_mark
-	end_mark := token.start_mark
-
-	var tag_token bool
-	var tag_handle, tag_suffix, anchor []byte
-	var tag_mark yaml_mark_t
-	if token.typ == yaml_ANCHOR_TOKEN {
-		anchor = token.value
-		start_mark = token.start_mark
-		end_mark = token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ == yaml_TAG_TOKEN {
-			tag_token = true
-			tag_handle = token.value
-			tag_suffix = token.suffix
-			tag_mark = token.start_mark
-			end_mark = token.end_mark
-			skip_token(parser)
-			token = peek_token(parser)
-			if token == nil {
-				return false
-			}
-		}
-	} else if token.typ == yaml_TAG_TOKEN {
-		tag_token = true
-		tag_handle = token.value
-		tag_suffix = token.suffix
-		start_mark = token.start_mark
-		tag_mark = token.start_mark
-		end_mark = token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ == yaml_ANCHOR_TOKEN {
-			anchor = token.value
-			end_mark = token.end_mark
-			skip_token(parser)
-			token = peek_token(parser)
-			if token == nil {
-				return false
-			}
-		}
-	}
-
-	var tag []byte
-	if tag_token {
-		if len(tag_handle) == 0 {
-			tag = tag_suffix
-			tag_suffix = nil
-		} else {
-			for i := range parser.tag_directives {
-				if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
-					tag = append([]byte(nil), parser.tag_directives[i].prefix...)
-					tag = append(tag, tag_suffix...)
-					break
-				}
-			}
-			if len(tag) == 0 {
-				yaml_parser_set_parser_error_context(parser,
-					"while parsing a node", start_mark,
-					"found undefined tag handle", tag_mark)
-				return false
-			}
-		}
-	}
-
-	implicit := len(tag) == 0
-	if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
-		end_mark = token.end_mark
-		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
-		*event = yaml_event_t{
-			typ:        yaml_SEQUENCE_START_EVENT,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			anchor:     anchor,
-			tag:        tag,
-			implicit:   implicit,
-			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
-		}
-		return true
-	}
-	if token.typ == yaml_SCALAR_TOKEN {
-		var plain_implicit, quoted_implicit bool
-		end_mark = token.end_mark
-		if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
-			plain_implicit = true
-		} else if len(tag) == 0 {
-			quoted_implicit = true
-		}
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-
-		*event = yaml_event_t{
-			typ:             yaml_SCALAR_EVENT,
-			start_mark:      start_mark,
-			end_mark:        end_mark,
-			anchor:          anchor,
-			tag:             tag,
-			value:           token.value,
-			implicit:        plain_implicit,
-			quoted_implicit: quoted_implicit,
-			style:           yaml_style_t(token.style),
-		}
-		skip_token(parser)
-		return true
-	}
-	if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
-		// [Go] Some of the events below can be merged as they differ only on style.
-		end_mark = token.end_mark
-		parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
-		*event = yaml_event_t{
-			typ:        yaml_SEQUENCE_START_EVENT,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			anchor:     anchor,
-			tag:        tag,
-			implicit:   implicit,
-			style:      yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
-		}
-		return true
-	}
-	if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
-		end_mark = token.end_mark
-		parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
-		*event = yaml_event_t{
-			typ:        yaml_MAPPING_START_EVENT,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			anchor:     anchor,
-			tag:        tag,
-			implicit:   implicit,
-			style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
-		}
-		return true
-	}
-	if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
-		end_mark = token.end_mark
-		parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
-		*event = yaml_event_t{
-			typ:        yaml_SEQUENCE_START_EVENT,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			anchor:     anchor,
-			tag:        tag,
-			implicit:   implicit,
-			style:      yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
-		}
-		return true
-	}
-	if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
-		end_mark = token.end_mark
-		parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
-		*event = yaml_event_t{
-			typ:        yaml_MAPPING_START_EVENT,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			anchor:     anchor,
-			tag:        tag,
-			implicit:   implicit,
-			style:      yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
-		}
-		return true
-	}
-	if len(anchor) > 0 || len(tag) > 0 {
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-
-		*event = yaml_event_t{
-			typ:             yaml_SCALAR_EVENT,
-			start_mark:      start_mark,
-			end_mark:        end_mark,
-			anchor:          anchor,
-			tag:             tag,
-			implicit:        implicit,
-			quoted_implicit: false,
-			style:           yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
-		}
-		return true
-	}
-
-	context := "while parsing a flow node"
-	if block {
-		context = "while parsing a block node"
-	}
-	yaml_parser_set_parser_error_context(parser, context, start_mark,
-		"did not find expected node content", token.start_mark)
-	return false
-}
-
-// Parse the productions:
-// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-//                    ********************  *********** *             *********
-//
-func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
-	if first {
-		token := peek_token(parser)
-		parser.marks = append(parser.marks, token.start_mark)
-		skip_token(parser)
-	}
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
-		mark := token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
-			return yaml_parser_parse_node(parser, event, true, false)
-		} else {
-			parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
-			return yaml_parser_process_empty_scalar(parser, event, mark)
-		}
-	}
-	if token.typ == yaml_BLOCK_END_TOKEN {
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-		parser.marks = parser.marks[:len(parser.marks)-1]
-
-		*event = yaml_event_t{
-			typ:        yaml_SEQUENCE_END_EVENT,
-			start_mark: token.start_mark,
-			end_mark:   token.end_mark,
-		}
-
-		skip_token(parser)
-		return true
-	}
-
-	context_mark := parser.marks[len(parser.marks)-1]
-	parser.marks = parser.marks[:len(parser.marks)-1]
-	return yaml_parser_set_parser_error_context(parser,
-		"while parsing a block collection", context_mark,
-		"did not find expected '-' indicator", token.start_mark)
-}
-
-// Parse the productions:
-// indentless_sequence  ::= (BLOCK-ENTRY block_node?)+
-//                           *********** *
-func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	if token.typ == yaml_BLOCK_ENTRY_TOKEN {
-		mark := token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
-			token.typ != yaml_KEY_TOKEN &&
-			token.typ != yaml_VALUE_TOKEN &&
-			token.typ != yaml_BLOCK_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
-			return yaml_parser_parse_node(parser, event, true, false)
-		}
-		parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
-		return yaml_parser_process_empty_scalar(parser, event, mark)
-	}
-	parser.state = parser.states[len(parser.states)-1]
-	parser.states = parser.states[:len(parser.states)-1]
-
-	*event = yaml_event_t{
-		typ:        yaml_SEQUENCE_END_EVENT,
-		start_mark: token.start_mark,
-		end_mark:   token.start_mark, // [Go] Shouldn't this be token.end_mark?
-	}
-	return true
-}
-
-// Parse the productions:
-// block_mapping        ::= BLOCK-MAPPING_START
-//                          *******************
-//                          ((KEY block_node_or_indentless_sequence?)?
-//                            *** *
-//                          (VALUE block_node_or_indentless_sequence?)?)*
-//
-//                          BLOCK-END
-//                          *********
-//
-func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
-	if first {
-		token := peek_token(parser)
-		parser.marks = append(parser.marks, token.start_mark)
-		skip_token(parser)
-	}
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	if token.typ == yaml_KEY_TOKEN {
-		mark := token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_KEY_TOKEN &&
-			token.typ != yaml_VALUE_TOKEN &&
-			token.typ != yaml_BLOCK_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
-			return yaml_parser_parse_node(parser, event, true, true)
-		} else {
-			parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
-			return yaml_parser_process_empty_scalar(parser, event, mark)
-		}
-	} else if token.typ == yaml_BLOCK_END_TOKEN {
-		parser.state = parser.states[len(parser.states)-1]
-		parser.states = parser.states[:len(parser.states)-1]
-		parser.marks = parser.marks[:len(parser.marks)-1]
-		*event = yaml_event_t{
-			typ:        yaml_MAPPING_END_EVENT,
-			start_mark: token.start_mark,
-			end_mark:   token.end_mark,
-		}
-		skip_token(parser)
-		return true
-	}
-
-	context_mark := parser.marks[len(parser.marks)-1]
-	parser.marks = parser.marks[:len(parser.marks)-1]
-	return yaml_parser_set_parser_error_context(parser,
-		"while parsing a block mapping", context_mark,
-		"did not find expected key", token.start_mark)
-}
-
-// Parse the productions:
-// block_mapping        ::= BLOCK-MAPPING_START
-//
-//                          ((KEY block_node_or_indentless_sequence?)?
-//
-//                          (VALUE block_node_or_indentless_sequence?)?)*
-//                           ***** *
-//                          BLOCK-END
-//
-//
-func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ == yaml_VALUE_TOKEN {
-		mark := token.end_mark
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_KEY_TOKEN &&
-			token.typ != yaml_VALUE_TOKEN &&
-			token.typ != yaml_BLOCK_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE)
-			return yaml_parser_parse_node(parser, event, true, true)
-		}
-		parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
-		return yaml_parser_process_empty_scalar(parser, event, mark)
-	}
-	parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
-	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Parse the productions:
-// flow_sequence        ::= FLOW-SEQUENCE-START
-//                          *******************
-//                          (flow_sequence_entry FLOW-ENTRY)*
-//                           *                   **********
-//                          flow_sequence_entry?
-//                          *
-//                          FLOW-SEQUENCE-END
-//                          *****************
-// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                          *
-//
-func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
-	if first {
-		token := peek_token(parser)
-		parser.marks = append(parser.marks, token.start_mark)
-		skip_token(parser)
-	}
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
-		if !first {
-			if token.typ == yaml_FLOW_ENTRY_TOKEN {
-				skip_token(parser)
-				token = peek_token(parser)
-				if token == nil {
-					return false
-				}
-			} else {
-				context_mark := parser.marks[len(parser.marks)-1]
-				parser.marks = parser.marks[:len(parser.marks)-1]
-				return yaml_parser_set_parser_error_context(parser,
-					"while parsing a flow sequence", context_mark,
-					"did not find expected ',' or ']'", token.start_mark)
-			}
-		}
-
-		if token.typ == yaml_KEY_TOKEN {
-			parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
-			*event = yaml_event_t{
-				typ:        yaml_MAPPING_START_EVENT,
-				start_mark: token.start_mark,
-				end_mark:   token.end_mark,
-				implicit:   true,
-				style:      yaml_style_t(yaml_FLOW_MAPPING_STYLE),
-			}
-			skip_token(parser)
-			return true
-		} else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
-			return yaml_parser_parse_node(parser, event, false, false)
-		}
-	}
-
-	parser.state = parser.states[len(parser.states)-1]
-	parser.states = parser.states[:len(parser.states)-1]
-	parser.marks = parser.marks[:len(parser.marks)-1]
-
-	*event = yaml_event_t{
-		typ:        yaml_SEQUENCE_END_EVENT,
-		start_mark: token.start_mark,
-		end_mark:   token.end_mark,
-	}
-
-	skip_token(parser)
-	return true
-}
-
-//
-// Parse the productions:
-// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                                      *** *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ != yaml_VALUE_TOKEN &&
-		token.typ != yaml_FLOW_ENTRY_TOKEN &&
-		token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
-		parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
-		return yaml_parser_parse_node(parser, event, false, false)
-	}
-	mark := token.end_mark
-	skip_token(parser)
-	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
-	return yaml_parser_process_empty_scalar(parser, event, mark)
-}
-
-// Parse the productions:
-// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                                                      ***** *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if token.typ == yaml_VALUE_TOKEN {
-		skip_token(parser)
-		token := peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
-			return yaml_parser_parse_node(parser, event, false, false)
-		}
-	}
-	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
-	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Parse the productions:
-// flow_sequence_entry  ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                                                                      *
-//
-func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
-	*event = yaml_event_t{
-		typ:        yaml_MAPPING_END_EVENT,
-		start_mark: token.start_mark,
-		end_mark:   token.start_mark, // [Go] Shouldn't this be end_mark?
-	}
-	return true
-}
-
-// Parse the productions:
-// flow_mapping         ::= FLOW-MAPPING-START
-//                          ******************
-//                          (flow_mapping_entry FLOW-ENTRY)*
-//                           *                  **********
-//                          flow_mapping_entry?
-//                          ******************
-//                          FLOW-MAPPING-END
-//                          ****************
-// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                          *           *** *
-//
-func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
-	if first {
-		token := peek_token(parser)
-		parser.marks = append(parser.marks, token.start_mark)
-		skip_token(parser)
-	}
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
-		if !first {
-			if token.typ == yaml_FLOW_ENTRY_TOKEN {
-				skip_token(parser)
-				token = peek_token(parser)
-				if token == nil {
-					return false
-				}
-			} else {
-				context_mark := parser.marks[len(parser.marks)-1]
-				parser.marks = parser.marks[:len(parser.marks)-1]
-				return yaml_parser_set_parser_error_context(parser,
-					"while parsing a flow mapping", context_mark,
-					"did not find expected ',' or '}'", token.start_mark)
-			}
-		}
-
-		if token.typ == yaml_KEY_TOKEN {
-			skip_token(parser)
-			token = peek_token(parser)
-			if token == nil {
-				return false
-			}
-			if token.typ != yaml_VALUE_TOKEN &&
-				token.typ != yaml_FLOW_ENTRY_TOKEN &&
-				token.typ != yaml_FLOW_MAPPING_END_TOKEN {
-				parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
-				return yaml_parser_parse_node(parser, event, false, false)
-			} else {
-				parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
-				return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-			}
-		} else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
-			return yaml_parser_parse_node(parser, event, false, false)
-		}
-	}
-
-	parser.state = parser.states[len(parser.states)-1]
-	parser.states = parser.states[:len(parser.states)-1]
-	parser.marks = parser.marks[:len(parser.marks)-1]
-	*event = yaml_event_t{
-		typ:        yaml_MAPPING_END_EVENT,
-		start_mark: token.start_mark,
-		end_mark:   token.end_mark,
-	}
-	skip_token(parser)
-	return true
-}
-
-// Parse the productions:
-// flow_mapping_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-//                                   *                  ***** *
-//
-func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-	if empty {
-		parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
-		return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-	}
-	if token.typ == yaml_VALUE_TOKEN {
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-		if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
-			parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
-			return yaml_parser_parse_node(parser, event, false, false)
-		}
-	}
-	parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
-	return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
-}
-
-// Generate an empty scalar event.
-func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
-	*event = yaml_event_t{
-		typ:        yaml_SCALAR_EVENT,
-		start_mark: mark,
-		end_mark:   mark,
-		value:      nil, // Empty
-		implicit:   true,
-		style:      yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
-	}
-	return true
-}
-
-var default_tag_directives = []yaml_tag_directive_t{
-	{[]byte("!"), []byte("!")},
-	{[]byte("!!"), []byte("tag:yaml.org,2002:")},
-}
-
-// Parse directives.
-func yaml_parser_process_directives(parser *yaml_parser_t,
-	version_directive_ref **yaml_version_directive_t,
-	tag_directives_ref *[]yaml_tag_directive_t) bool {
-
-	var version_directive *yaml_version_directive_t
-	var tag_directives []yaml_tag_directive_t
-
-	token := peek_token(parser)
-	if token == nil {
-		return false
-	}
-
-	for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
-		if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
-			if version_directive != nil {
-				yaml_parser_set_parser_error(parser,
-					"found duplicate %YAML directive", token.start_mark)
-				return false
-			}
-			if token.major != 1 || token.minor != 1 {
-				yaml_parser_set_parser_error(parser,
-					"found incompatible YAML document", token.start_mark)
-				return false
-			}
-			version_directive = &yaml_version_directive_t{
-				major: token.major,
-				minor: token.minor,
-			}
-		} else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
-			value := yaml_tag_directive_t{
-				handle: token.value,
-				prefix: token.prefix,
-			}
-			if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
-				return false
-			}
-			tag_directives = append(tag_directives, value)
-		}
-
-		skip_token(parser)
-		token = peek_token(parser)
-		if token == nil {
-			return false
-		}
-	}
-
-	for i := range default_tag_directives {
-		if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
-			return false
-		}
-	}
-
-	if version_directive_ref != nil {
-		*version_directive_ref = version_directive
-	}
-	if tag_directives_ref != nil {
-		*tag_directives_ref = tag_directives
-	}
-	return true
-}
-
-// Append a tag directive to the directives stack.
-func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
-	for i := range parser.tag_directives {
-		if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
-			if allow_duplicates {
-				return true
-			}
-			return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
-		}
-	}
-
-	// [Go] I suspect the copy is unnecessary. This was likely done
-	// because there was no way to track ownership of the data.
-	value_copy := yaml_tag_directive_t{
-		handle: make([]byte, len(value.handle)),
-		prefix: make([]byte, len(value.prefix)),
-	}
-	copy(value_copy.handle, value.handle)
-	copy(value_copy.prefix, value.prefix)
-	parser.tag_directives = append(parser.tag_directives, value_copy)
-	return true
-}
diff --git a/vendor/gopkg.in/yaml.v2/readerc.go b/vendor/gopkg.in/yaml.v2/readerc.go
deleted file mode 100644
index 7c1f5fa..0000000
--- a/vendor/gopkg.in/yaml.v2/readerc.go
+++ /dev/null
@@ -1,412 +0,0 @@
-package yaml
-
-import (
-	"io"
-)
-
-// Set the reader error and return 0.
-func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
-	parser.error = yaml_READER_ERROR
-	parser.problem = problem
-	parser.problem_offset = offset
-	parser.problem_value = value
-	return false
-}
-
-// Byte order marks.
-const (
-	bom_UTF8    = "\xef\xbb\xbf"
-	bom_UTF16LE = "\xff\xfe"
-	bom_UTF16BE = "\xfe\xff"
-)
-
-// Determine the input stream encoding by checking the BOM symbol. If no BOM is
-// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
-func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
-	// Ensure that we had enough bytes in the raw buffer.
-	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
-		if !yaml_parser_update_raw_buffer(parser) {
-			return false
-		}
-	}
-
-	// Determine the encoding.
-	buf := parser.raw_buffer
-	pos := parser.raw_buffer_pos
-	avail := len(buf) - pos
-	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
-		parser.encoding = yaml_UTF16LE_ENCODING
-		parser.raw_buffer_pos += 2
-		parser.offset += 2
-	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
-		parser.encoding = yaml_UTF16BE_ENCODING
-		parser.raw_buffer_pos += 2
-		parser.offset += 2
-	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
-		parser.encoding = yaml_UTF8_ENCODING
-		parser.raw_buffer_pos += 3
-		parser.offset += 3
-	} else {
-		parser.encoding = yaml_UTF8_ENCODING
-	}
-	return true
-}
-
-// Update the raw buffer.
-func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
-	size_read := 0
-
-	// Return if the raw buffer is full.
-	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
-		return true
-	}
-
-	// Return on EOF.
-	if parser.eof {
-		return true
-	}
-
-	// Move the remaining bytes in the raw buffer to the beginning.
-	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
-		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
-	}
-	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
-	parser.raw_buffer_pos = 0
-
-	// Call the read handler to fill the buffer.
-	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
-	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
-	if err == io.EOF {
-		parser.eof = true
-	} else if err != nil {
-		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
-	}
-	return true
-}
-
-// Ensure that the buffer contains at least `length` characters.
-// Return true on success, false on failure.
-//
-// The length is supposed to be significantly less that the buffer size.
-func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
-	if parser.read_handler == nil {
-		panic("read handler must be set")
-	}
-
-	// [Go] This function was changed to guarantee the requested length size at EOF.
-	// The fact we need to do this is pretty awful, but the description above implies
-	// for that to be the case, and there are tests 
-
-	// If the EOF flag is set and the raw buffer is empty, do nothing.
-	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
-		// [Go] ACTUALLY! Read the documentation of this function above.
-		// This is just broken. To return true, we need to have the
-		// given length in the buffer. Not doing that means every single
-		// check that calls this function to make sure the buffer has a
-		// given length is Go) panicking; or C) accessing invalid memory.
-		//return true
-	}
-
-	// Return if the buffer contains enough characters.
-	if parser.unread >= length {
-		return true
-	}
-
-	// Determine the input encoding if it is not known yet.
-	if parser.encoding == yaml_ANY_ENCODING {
-		if !yaml_parser_determine_encoding(parser) {
-			return false
-		}
-	}
-
-	// Move the unread characters to the beginning of the buffer.
-	buffer_len := len(parser.buffer)
-	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
-		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
-		buffer_len -= parser.buffer_pos
-		parser.buffer_pos = 0
-	} else if parser.buffer_pos == buffer_len {
-		buffer_len = 0
-		parser.buffer_pos = 0
-	}
-
-	// Open the whole buffer for writing, and cut it before returning.
-	parser.buffer = parser.buffer[:cap(parser.buffer)]
-
-	// Fill the buffer until it has enough characters.
-	first := true
-	for parser.unread < length {
-
-		// Fill the raw buffer if necessary.
-		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
-			if !yaml_parser_update_raw_buffer(parser) {
-				parser.buffer = parser.buffer[:buffer_len]
-				return false
-			}
-		}
-		first = false
-
-		// Decode the raw buffer.
-	inner:
-		for parser.raw_buffer_pos != len(parser.raw_buffer) {
-			var value rune
-			var width int
-
-			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
-
-			// Decode the next character.
-			switch parser.encoding {
-			case yaml_UTF8_ENCODING:
-				// Decode a UTF-8 character.  Check RFC 3629
-				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
-				//
-				// The following table (taken from the RFC) is used for
-				// decoding.
-				//
-				//    Char. number range |        UTF-8 octet sequence
-				//      (hexadecimal)    |              (binary)
-				//   --------------------+------------------------------------
-				//   0000 0000-0000 007F | 0xxxxxxx
-				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
-				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
-				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-				//
-				// Additionally, the characters in the range 0xD800-0xDFFF
-				// are prohibited as they are reserved for use with UTF-16
-				// surrogate pairs.
-
-				// Determine the length of the UTF-8 sequence.
-				octet := parser.raw_buffer[parser.raw_buffer_pos]
-				switch {
-				case octet&0x80 == 0x00:
-					width = 1
-				case octet&0xE0 == 0xC0:
-					width = 2
-				case octet&0xF0 == 0xE0:
-					width = 3
-				case octet&0xF8 == 0xF0:
-					width = 4
-				default:
-					// The leading octet is invalid.
-					return yaml_parser_set_reader_error(parser,
-						"invalid leading UTF-8 octet",
-						parser.offset, int(octet))
-				}
-
-				// Check if the raw buffer contains an incomplete character.
-				if width > raw_unread {
-					if parser.eof {
-						return yaml_parser_set_reader_error(parser,
-							"incomplete UTF-8 octet sequence",
-							parser.offset, -1)
-					}
-					break inner
-				}
-
-				// Decode the leading octet.
-				switch {
-				case octet&0x80 == 0x00:
-					value = rune(octet & 0x7F)
-				case octet&0xE0 == 0xC0:
-					value = rune(octet & 0x1F)
-				case octet&0xF0 == 0xE0:
-					value = rune(octet & 0x0F)
-				case octet&0xF8 == 0xF0:
-					value = rune(octet & 0x07)
-				default:
-					value = 0
-				}
-
-				// Check and decode the trailing octets.
-				for k := 1; k < width; k++ {
-					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
-
-					// Check if the octet is valid.
-					if (octet & 0xC0) != 0x80 {
-						return yaml_parser_set_reader_error(parser,
-							"invalid trailing UTF-8 octet",
-							parser.offset+k, int(octet))
-					}
-
-					// Decode the octet.
-					value = (value << 6) + rune(octet&0x3F)
-				}
-
-				// Check the length of the sequence against the value.
-				switch {
-				case width == 1:
-				case width == 2 && value >= 0x80:
-				case width == 3 && value >= 0x800:
-				case width == 4 && value >= 0x10000:
-				default:
-					return yaml_parser_set_reader_error(parser,
-						"invalid length of a UTF-8 sequence",
-						parser.offset, -1)
-				}
-
-				// Check the range of the value.
-				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
-					return yaml_parser_set_reader_error(parser,
-						"invalid Unicode character",
-						parser.offset, int(value))
-				}
-
-			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
-				var low, high int
-				if parser.encoding == yaml_UTF16LE_ENCODING {
-					low, high = 0, 1
-				} else {
-					low, high = 1, 0
-				}
-
-				// The UTF-16 encoding is not as simple as one might
-				// naively think.  Check RFC 2781
-				// (http://www.ietf.org/rfc/rfc2781.txt).
-				//
-				// Normally, two subsequent bytes describe a Unicode
-				// character.  However a special technique (called a
-				// surrogate pair) is used for specifying character
-				// values larger than 0xFFFF.
-				//
-				// A surrogate pair consists of two pseudo-characters:
-				//      high surrogate area (0xD800-0xDBFF)
-				//      low surrogate area (0xDC00-0xDFFF)
-				//
-				// The following formulas are used for decoding
-				// and encoding characters using surrogate pairs:
-				//
-				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
-				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
-				//  W1 = 110110yyyyyyyyyy
-				//  W2 = 110111xxxxxxxxxx
-				//
-				// where U is the character value, W1 is the high surrogate
-				// area, W2 is the low surrogate area.
-
-				// Check for incomplete UTF-16 character.
-				if raw_unread < 2 {
-					if parser.eof {
-						return yaml_parser_set_reader_error(parser,
-							"incomplete UTF-16 character",
-							parser.offset, -1)
-					}
-					break inner
-				}
-
-				// Get the character.
-				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
-					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
-
-				// Check for unexpected low surrogate area.
-				if value&0xFC00 == 0xDC00 {
-					return yaml_parser_set_reader_error(parser,
-						"unexpected low surrogate area",
-						parser.offset, int(value))
-				}
-
-				// Check for a high surrogate area.
-				if value&0xFC00 == 0xD800 {
-					width = 4
-
-					// Check for incomplete surrogate pair.
-					if raw_unread < 4 {
-						if parser.eof {
-							return yaml_parser_set_reader_error(parser,
-								"incomplete UTF-16 surrogate pair",
-								parser.offset, -1)
-						}
-						break inner
-					}
-
-					// Get the next character.
-					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
-						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
-
-					// Check for a low surrogate area.
-					if value2&0xFC00 != 0xDC00 {
-						return yaml_parser_set_reader_error(parser,
-							"expected low surrogate area",
-							parser.offset+2, int(value2))
-					}
-
-					// Generate the value of the surrogate pair.
-					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
-				} else {
-					width = 2
-				}
-
-			default:
-				panic("impossible")
-			}
-
-			// Check if the character is in the allowed range:
-			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
-			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
-			//      | [#x10000-#x10FFFF]                        (32 bit)
-			switch {
-			case value == 0x09:
-			case value == 0x0A:
-			case value == 0x0D:
-			case value >= 0x20 && value <= 0x7E:
-			case value == 0x85:
-			case value >= 0xA0 && value <= 0xD7FF:
-			case value >= 0xE000 && value <= 0xFFFD:
-			case value >= 0x10000 && value <= 0x10FFFF:
-			default:
-				return yaml_parser_set_reader_error(parser,
-					"control characters are not allowed",
-					parser.offset, int(value))
-			}
-
-			// Move the raw pointers.
-			parser.raw_buffer_pos += width
-			parser.offset += width
-
-			// Finally put the character into the buffer.
-			if value <= 0x7F {
-				// 0000 0000-0000 007F . 0xxxxxxx
-				parser.buffer[buffer_len+0] = byte(value)
-				buffer_len += 1
-			} else if value <= 0x7FF {
-				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
-				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
-				buffer_len += 2
-			} else if value <= 0xFFFF {
-				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
-				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
-				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
-				buffer_len += 3
-			} else {
-				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
-				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
-				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
-				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
-				buffer_len += 4
-			}
-
-			parser.unread++
-		}
-
-		// On EOF, put NUL into the buffer and return.
-		if parser.eof {
-			parser.buffer[buffer_len] = 0
-			buffer_len++
-			parser.unread++
-			break
-		}
-	}
-	// [Go] Read the documentation of this function above. To return true,
-	// we need to have the given length in the buffer. Not doing that means
-	// every single check that calls this function to make sure the buffer
-	// has a given length is Go) panicking; or C) accessing invalid memory.
-	// This happens here due to the EOF above breaking early.
-	for buffer_len < length {
-		parser.buffer[buffer_len] = 0
-		buffer_len++
-	}
-	parser.buffer = parser.buffer[:buffer_len]
-	return true
-}
diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v2/resolve.go
deleted file mode 100644
index 6c151db..0000000
--- a/vendor/gopkg.in/yaml.v2/resolve.go
+++ /dev/null
@@ -1,258 +0,0 @@
-package yaml
-
-import (
-	"encoding/base64"
-	"math"
-	"regexp"
-	"strconv"
-	"strings"
-	"time"
-)
-
-type resolveMapItem struct {
-	value interface{}
-	tag   string
-}
-
-var resolveTable = make([]byte, 256)
-var resolveMap = make(map[string]resolveMapItem)
-
-func init() {
-	t := resolveTable
-	t[int('+')] = 'S' // Sign
-	t[int('-')] = 'S'
-	for _, c := range "0123456789" {
-		t[int(c)] = 'D' // Digit
-	}
-	for _, c := range "yYnNtTfFoO~" {
-		t[int(c)] = 'M' // In map
-	}
-	t[int('.')] = '.' // Float (potentially in map)
-
-	var resolveMapList = []struct {
-		v   interface{}
-		tag string
-		l   []string
-	}{
-		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
-		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
-		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
-		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
-		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
-		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
-		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
-		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
-		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
-		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
-		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
-		{"<<", yaml_MERGE_TAG, []string{"<<"}},
-	}
-
-	m := resolveMap
-	for _, item := range resolveMapList {
-		for _, s := range item.l {
-			m[s] = resolveMapItem{item.v, item.tag}
-		}
-	}
-}
-
-const longTagPrefix = "tag:yaml.org,2002:"
-
-func shortTag(tag string) string {
-	// TODO This can easily be made faster and produce less garbage.
-	if strings.HasPrefix(tag, longTagPrefix) {
-		return "!!" + tag[len(longTagPrefix):]
-	}
-	return tag
-}
-
-func longTag(tag string) string {
-	if strings.HasPrefix(tag, "!!") {
-		return longTagPrefix + tag[2:]
-	}
-	return tag
-}
-
-func resolvableTag(tag string) bool {
-	switch tag {
-	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG:
-		return true
-	}
-	return false
-}
-
-var yamlStyleFloat = regexp.MustCompile(`^[-+]?[0-9]*\.?[0-9]+([eE][-+][0-9]+)?$`)
-
-func resolve(tag string, in string) (rtag string, out interface{}) {
-	if !resolvableTag(tag) {
-		return tag, in
-	}
-
-	defer func() {
-		switch tag {
-		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
-			return
-		case yaml_FLOAT_TAG:
-			if rtag == yaml_INT_TAG {
-				switch v := out.(type) {
-				case int64:
-					rtag = yaml_FLOAT_TAG
-					out = float64(v)
-					return
-				case int:
-					rtag = yaml_FLOAT_TAG
-					out = float64(v)
-					return
-				}
-			}
-		}
-		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
-	}()
-
-	// Any data is accepted as a !!str or !!binary.
-	// Otherwise, the prefix is enough of a hint about what it might be.
-	hint := byte('N')
-	if in != "" {
-		hint = resolveTable[in[0]]
-	}
-	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
-		// Handle things we can lookup in a map.
-		if item, ok := resolveMap[in]; ok {
-			return item.tag, item.value
-		}
-
-		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
-		// are purposefully unsupported here. They're still quoted on
-		// the way out for compatibility with other parser, though.
-
-		switch hint {
-		case 'M':
-			// We've already checked the map above.
-
-		case '.':
-			// Not in the map, so maybe a normal float.
-			floatv, err := strconv.ParseFloat(in, 64)
-			if err == nil {
-				return yaml_FLOAT_TAG, floatv
-			}
-
-		case 'D', 'S':
-			// Int, float, or timestamp.
-			// Only try values as a timestamp if the value is unquoted or there's an explicit
-			// !!timestamp tag.
-			if tag == "" || tag == yaml_TIMESTAMP_TAG {
-				t, ok := parseTimestamp(in)
-				if ok {
-					return yaml_TIMESTAMP_TAG, t
-				}
-			}
-
-			plain := strings.Replace(in, "_", "", -1)
-			intv, err := strconv.ParseInt(plain, 0, 64)
-			if err == nil {
-				if intv == int64(int(intv)) {
-					return yaml_INT_TAG, int(intv)
-				} else {
-					return yaml_INT_TAG, intv
-				}
-			}
-			uintv, err := strconv.ParseUint(plain, 0, 64)
-			if err == nil {
-				return yaml_INT_TAG, uintv
-			}
-			if yamlStyleFloat.MatchString(plain) {
-				floatv, err := strconv.ParseFloat(plain, 64)
-				if err == nil {
-					return yaml_FLOAT_TAG, floatv
-				}
-			}
-			if strings.HasPrefix(plain, "0b") {
-				intv, err := strconv.ParseInt(plain[2:], 2, 64)
-				if err == nil {
-					if intv == int64(int(intv)) {
-						return yaml_INT_TAG, int(intv)
-					} else {
-						return yaml_INT_TAG, intv
-					}
-				}
-				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
-				if err == nil {
-					return yaml_INT_TAG, uintv
-				}
-			} else if strings.HasPrefix(plain, "-0b") {
-				intv, err := strconv.ParseInt("-" + plain[3:], 2, 64)
-				if err == nil {
-					if true || intv == int64(int(intv)) {
-						return yaml_INT_TAG, int(intv)
-					} else {
-						return yaml_INT_TAG, intv
-					}
-				}
-			}
-		default:
-			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
-		}
-	}
-	return yaml_STR_TAG, in
-}
-
-// encodeBase64 encodes s as base64 that is broken up into multiple lines
-// as appropriate for the resulting length.
-func encodeBase64(s string) string {
-	const lineLen = 70
-	encLen := base64.StdEncoding.EncodedLen(len(s))
-	lines := encLen/lineLen + 1
-	buf := make([]byte, encLen*2+lines)
-	in := buf[0:encLen]
-	out := buf[encLen:]
-	base64.StdEncoding.Encode(in, []byte(s))
-	k := 0
-	for i := 0; i < len(in); i += lineLen {
-		j := i + lineLen
-		if j > len(in) {
-			j = len(in)
-		}
-		k += copy(out[k:], in[i:j])
-		if lines > 1 {
-			out[k] = '\n'
-			k++
-		}
-	}
-	return string(out[:k])
-}
-
-// This is a subset of the formats allowed by the regular expression
-// defined at http://yaml.org/type/timestamp.html.
-var allowedTimestampFormats = []string{
-	"2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields.
-	"2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t".
-	"2006-1-2 15:4:5.999999999",       // space separated with no time zone
-	"2006-1-2",                        // date only
-	// Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5"
-	// from the set of examples.
-}
-
-// parseTimestamp parses s as a timestamp string and
-// returns the timestamp and reports whether it succeeded.
-// Timestamp formats are defined at http://yaml.org/type/timestamp.html
-func parseTimestamp(s string) (time.Time, bool) {
-	// TODO write code to check all the formats supported by
-	// http://yaml.org/type/timestamp.html instead of using time.Parse.
-
-	// Quick check: all date formats start with YYYY-.
-	i := 0
-	for ; i < len(s); i++ {
-		if c := s[i]; c < '0' || c > '9' {
-			break
-		}
-	}
-	if i != 4 || i == len(s) || s[i] != '-' {
-		return time.Time{}, false
-	}
-	for _, format := range allowedTimestampFormats {
-		if t, err := time.Parse(format, s); err == nil {
-			return t, true
-		}
-	}
-	return time.Time{}, false
-}
diff --git a/vendor/gopkg.in/yaml.v2/scannerc.go b/vendor/gopkg.in/yaml.v2/scannerc.go
deleted file mode 100644
index 077fd1d..0000000
--- a/vendor/gopkg.in/yaml.v2/scannerc.go
+++ /dev/null
@@ -1,2696 +0,0 @@
-package yaml
-
-import (
-	"bytes"
-	"fmt"
-)
-
-// Introduction
-// ************
-//
-// The following notes assume that you are familiar with the YAML specification
-// (http://yaml.org/spec/1.2/spec.html).  We mostly follow it, although in
-// some cases we are less restrictive that it requires.
-//
-// The process of transforming a YAML stream into a sequence of events is
-// divided on two steps: Scanning and Parsing.
-//
-// The Scanner transforms the input stream into a sequence of tokens, while the
-// parser transform the sequence of tokens produced by the Scanner into a
-// sequence of parsing events.
-//
-// The Scanner is rather clever and complicated. The Parser, on the contrary,
-// is a straightforward implementation of a recursive-descendant parser (or,
-// LL(1) parser, as it is usually called).
-//
-// Actually there are two issues of Scanning that might be called "clever", the
-// rest is quite straightforward.  The issues are "block collection start" and
-// "simple keys".  Both issues are explained below in details.
-//
-// Here the Scanning step is explained and implemented.  We start with the list
-// of all the tokens produced by the Scanner together with short descriptions.
-//
-// Now, tokens:
-//
-//      STREAM-START(encoding)          # The stream start.
-//      STREAM-END                      # The stream end.
-//      VERSION-DIRECTIVE(major,minor)  # The '%YAML' directive.
-//      TAG-DIRECTIVE(handle,prefix)    # The '%TAG' directive.
-//      DOCUMENT-START                  # '---'
-//      DOCUMENT-END                    # '...'
-//      BLOCK-SEQUENCE-START            # Indentation increase denoting a block
-//      BLOCK-MAPPING-START             # sequence or a block mapping.
-//      BLOCK-END                       # Indentation decrease.
-//      FLOW-SEQUENCE-START             # '['
-//      FLOW-SEQUENCE-END               # ']'
-//      BLOCK-SEQUENCE-START            # '{'
-//      BLOCK-SEQUENCE-END              # '}'
-//      BLOCK-ENTRY                     # '-'
-//      FLOW-ENTRY                      # ','
-//      KEY                             # '?' or nothing (simple keys).
-//      VALUE                           # ':'
-//      ALIAS(anchor)                   # '*anchor'
-//      ANCHOR(anchor)                  # '&anchor'
-//      TAG(handle,suffix)              # '!handle!suffix'
-//      SCALAR(value,style)             # A scalar.
-//
-// The following two tokens are "virtual" tokens denoting the beginning and the
-// end of the stream:
-//
-//      STREAM-START(encoding)
-//      STREAM-END
-//
-// We pass the information about the input stream encoding with the
-// STREAM-START token.
-//
-// The next two tokens are responsible for tags:
-//
-//      VERSION-DIRECTIVE(major,minor)
-//      TAG-DIRECTIVE(handle,prefix)
-//
-// Example:
-//
-//      %YAML   1.1
-//      %TAG    !   !foo
-//      %TAG    !yaml!  tag:yaml.org,2002:
-//      ---
-//
-// The correspoding sequence of tokens:
-//
-//      STREAM-START(utf-8)
-//      VERSION-DIRECTIVE(1,1)
-//      TAG-DIRECTIVE("!","!foo")
-//      TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
-//      DOCUMENT-START
-//      STREAM-END
-//
-// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
-// line.
-//
-// The document start and end indicators are represented by:
-//
-//      DOCUMENT-START
-//      DOCUMENT-END
-//
-// Note that if a YAML stream contains an implicit document (without '---'
-// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
-// produced.
-//
-// In the following examples, we present whole documents together with the
-// produced tokens.
-//
-//      1. An implicit document:
-//
-//          'a scalar'
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          SCALAR("a scalar",single-quoted)
-//          STREAM-END
-//
-//      2. An explicit document:
-//
-//          ---
-//          'a scalar'
-//          ...
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          DOCUMENT-START
-//          SCALAR("a scalar",single-quoted)
-//          DOCUMENT-END
-//          STREAM-END
-//
-//      3. Several documents in a stream:
-//
-//          'a scalar'
-//          ---
-//          'another scalar'
-//          ---
-//          'yet another scalar'
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          SCALAR("a scalar",single-quoted)
-//          DOCUMENT-START
-//          SCALAR("another scalar",single-quoted)
-//          DOCUMENT-START
-//          SCALAR("yet another scalar",single-quoted)
-//          STREAM-END
-//
-// We have already introduced the SCALAR token above.  The following tokens are
-// used to describe aliases, anchors, tag, and scalars:
-//
-//      ALIAS(anchor)
-//      ANCHOR(anchor)
-//      TAG(handle,suffix)
-//      SCALAR(value,style)
-//
-// The following series of examples illustrate the usage of these tokens:
-//
-//      1. A recursive sequence:
-//
-//          &A [ *A ]
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          ANCHOR("A")
-//          FLOW-SEQUENCE-START
-//          ALIAS("A")
-//          FLOW-SEQUENCE-END
-//          STREAM-END
-//
-//      2. A tagged scalar:
-//
-//          !!float "3.14"  # A good approximation.
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          TAG("!!","float")
-//          SCALAR("3.14",double-quoted)
-//          STREAM-END
-//
-//      3. Various scalar styles:
-//
-//          --- # Implicit empty plain scalars do not produce tokens.
-//          --- a plain scalar
-//          --- 'a single-quoted scalar'
-//          --- "a double-quoted scalar"
-//          --- |-
-//            a literal scalar
-//          --- >-
-//            a folded
-//            scalar
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          DOCUMENT-START
-//          DOCUMENT-START
-//          SCALAR("a plain scalar",plain)
-//          DOCUMENT-START
-//          SCALAR("a single-quoted scalar",single-quoted)
-//          DOCUMENT-START
-//          SCALAR("a double-quoted scalar",double-quoted)
-//          DOCUMENT-START
-//          SCALAR("a literal scalar",literal)
-//          DOCUMENT-START
-//          SCALAR("a folded scalar",folded)
-//          STREAM-END
-//
-// Now it's time to review collection-related tokens. We will start with
-// flow collections:
-//
-//      FLOW-SEQUENCE-START
-//      FLOW-SEQUENCE-END
-//      FLOW-MAPPING-START
-//      FLOW-MAPPING-END
-//      FLOW-ENTRY
-//      KEY
-//      VALUE
-//
-// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
-// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
-// correspondingly.  FLOW-ENTRY represent the ',' indicator.  Finally the
-// indicators '?' and ':', which are used for denoting mapping keys and values,
-// are represented by the KEY and VALUE tokens.
-//
-// The following examples show flow collections:
-//
-//      1. A flow sequence:
-//
-//          [item 1, item 2, item 3]
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          FLOW-SEQUENCE-START
-//          SCALAR("item 1",plain)
-//          FLOW-ENTRY
-//          SCALAR("item 2",plain)
-//          FLOW-ENTRY
-//          SCALAR("item 3",plain)
-//          FLOW-SEQUENCE-END
-//          STREAM-END
-//
-//      2. A flow mapping:
-//
-//          {
-//              a simple key: a value,  # Note that the KEY token is produced.
-//              ? a complex key: another value,
-//          }
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          FLOW-MAPPING-START
-//          KEY
-//          SCALAR("a simple key",plain)
-//          VALUE
-//          SCALAR("a value",plain)
-//          FLOW-ENTRY
-//          KEY
-//          SCALAR("a complex key",plain)
-//          VALUE
-//          SCALAR("another value",plain)
-//          FLOW-ENTRY
-//          FLOW-MAPPING-END
-//          STREAM-END
-//
-// A simple key is a key which is not denoted by the '?' indicator.  Note that
-// the Scanner still produce the KEY token whenever it encounters a simple key.
-//
-// For scanning block collections, the following tokens are used (note that we
-// repeat KEY and VALUE here):
-//
-//      BLOCK-SEQUENCE-START
-//      BLOCK-MAPPING-START
-//      BLOCK-END
-//      BLOCK-ENTRY
-//      KEY
-//      VALUE
-//
-// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
-// increase that precedes a block collection (cf. the INDENT token in Python).
-// The token BLOCK-END denote indentation decrease that ends a block collection
-// (cf. the DEDENT token in Python).  However YAML has some syntax pecularities
-// that makes detections of these tokens more complex.
-//
-// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
-// '-', '?', and ':' correspondingly.
-//
-// The following examples show how the tokens BLOCK-SEQUENCE-START,
-// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
-//
-//      1. Block sequences:
-//
-//          - item 1
-//          - item 2
-//          -
-//            - item 3.1
-//            - item 3.2
-//          -
-//            key 1: value 1
-//            key 2: value 2
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          SCALAR("item 1",plain)
-//          BLOCK-ENTRY
-//          SCALAR("item 2",plain)
-//          BLOCK-ENTRY
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          SCALAR("item 3.1",plain)
-//          BLOCK-ENTRY
-//          SCALAR("item 3.2",plain)
-//          BLOCK-END
-//          BLOCK-ENTRY
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("key 1",plain)
-//          VALUE
-//          SCALAR("value 1",plain)
-//          KEY
-//          SCALAR("key 2",plain)
-//          VALUE
-//          SCALAR("value 2",plain)
-//          BLOCK-END
-//          BLOCK-END
-//          STREAM-END
-//
-//      2. Block mappings:
-//
-//          a simple key: a value   # The KEY token is produced here.
-//          ? a complex key
-//          : another value
-//          a mapping:
-//            key 1: value 1
-//            key 2: value 2
-//          a sequence:
-//            - item 1
-//            - item 2
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("a simple key",plain)
-//          VALUE
-//          SCALAR("a value",plain)
-//          KEY
-//          SCALAR("a complex key",plain)
-//          VALUE
-//          SCALAR("another value",plain)
-//          KEY
-//          SCALAR("a mapping",plain)
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("key 1",plain)
-//          VALUE
-//          SCALAR("value 1",plain)
-//          KEY
-//          SCALAR("key 2",plain)
-//          VALUE
-//          SCALAR("value 2",plain)
-//          BLOCK-END
-//          KEY
-//          SCALAR("a sequence",plain)
-//          VALUE
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          SCALAR("item 1",plain)
-//          BLOCK-ENTRY
-//          SCALAR("item 2",plain)
-//          BLOCK-END
-//          BLOCK-END
-//          STREAM-END
-//
-// YAML does not always require to start a new block collection from a new
-// line.  If the current line contains only '-', '?', and ':' indicators, a new
-// block collection may start at the current line.  The following examples
-// illustrate this case:
-//
-//      1. Collections in a sequence:
-//
-//          - - item 1
-//            - item 2
-//          - key 1: value 1
-//            key 2: value 2
-//          - ? complex key
-//            : complex value
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          SCALAR("item 1",plain)
-//          BLOCK-ENTRY
-//          SCALAR("item 2",plain)
-//          BLOCK-END
-//          BLOCK-ENTRY
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("key 1",plain)
-//          VALUE
-//          SCALAR("value 1",plain)
-//          KEY
-//          SCALAR("key 2",plain)
-//          VALUE
-//          SCALAR("value 2",plain)
-//          BLOCK-END
-//          BLOCK-ENTRY
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("complex key")
-//          VALUE
-//          SCALAR("complex value")
-//          BLOCK-END
-//          BLOCK-END
-//          STREAM-END
-//
-//      2. Collections in a mapping:
-//
-//          ? a sequence
-//          : - item 1
-//            - item 2
-//          ? a mapping
-//          : key 1: value 1
-//            key 2: value 2
-//
-//      Tokens:
-//
-//          STREAM-START(utf-8)
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("a sequence",plain)
-//          VALUE
-//          BLOCK-SEQUENCE-START
-//          BLOCK-ENTRY
-//          SCALAR("item 1",plain)
-//          BLOCK-ENTRY
-//          SCALAR("item 2",plain)
-//          BLOCK-END
-//          KEY
-//          SCALAR("a mapping",plain)
-//          VALUE
-//          BLOCK-MAPPING-START
-//          KEY
-//          SCALAR("key 1",plain)
-//          VALUE
-//          SCALAR("value 1",plain)
-//          KEY
-//          SCALAR("key 2",plain)
-//          VALUE
-//          SCALAR("value 2",plain)
-//          BLOCK-END
-//          BLOCK-END
-//          STREAM-END
-//
-// YAML also permits non-indented sequences if they are included into a block
-// mapping.  In this case, the token BLOCK-SEQUENCE-START is not produced:
-//
-//      key:
-//      - item 1    # BLOCK-SEQUENCE-START is NOT produced here.
-//      - item 2
-//
-// Tokens:
-//
-//      STREAM-START(utf-8)
-//      BLOCK-MAPPING-START
-//      KEY
-//      SCALAR("key",plain)
-//      VALUE
-//      BLOCK-ENTRY
-//      SCALAR("item 1",plain)
-//      BLOCK-ENTRY
-//      SCALAR("item 2",plain)
-//      BLOCK-END
-//
-
-// Ensure that the buffer contains the required number of characters.
-// Return true on success, false on failure (reader error or memory error).
-func cache(parser *yaml_parser_t, length int) bool {
-	// [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B)
-	return parser.unread >= length || yaml_parser_update_buffer(parser, length)
-}
-
-// Advance the buffer pointer.
-func skip(parser *yaml_parser_t) {
-	parser.mark.index++
-	parser.mark.column++
-	parser.unread--
-	parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
-}
-
-func skip_line(parser *yaml_parser_t) {
-	if is_crlf(parser.buffer, parser.buffer_pos) {
-		parser.mark.index += 2
-		parser.mark.column = 0
-		parser.mark.line++
-		parser.unread -= 2
-		parser.buffer_pos += 2
-	} else if is_break(parser.buffer, parser.buffer_pos) {
-		parser.mark.index++
-		parser.mark.column = 0
-		parser.mark.line++
-		parser.unread--
-		parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
-	}
-}
-
-// Copy a character to a string buffer and advance pointers.
-func read(parser *yaml_parser_t, s []byte) []byte {
-	w := width(parser.buffer[parser.buffer_pos])
-	if w == 0 {
-		panic("invalid character sequence")
-	}
-	if len(s) == 0 {
-		s = make([]byte, 0, 32)
-	}
-	if w == 1 && len(s)+w <= cap(s) {
-		s = s[:len(s)+1]
-		s[len(s)-1] = parser.buffer[parser.buffer_pos]
-		parser.buffer_pos++
-	} else {
-		s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...)
-		parser.buffer_pos += w
-	}
-	parser.mark.index++
-	parser.mark.column++
-	parser.unread--
-	return s
-}
-
-// Copy a line break character to a string buffer and advance pointers.
-func read_line(parser *yaml_parser_t, s []byte) []byte {
-	buf := parser.buffer
-	pos := parser.buffer_pos
-	switch {
-	case buf[pos] == '\r' && buf[pos+1] == '\n':
-		// CR LF . LF
-		s = append(s, '\n')
-		parser.buffer_pos += 2
-		parser.mark.index++
-		parser.unread--
-	case buf[pos] == '\r' || buf[pos] == '\n':
-		// CR|LF . LF
-		s = append(s, '\n')
-		parser.buffer_pos += 1
-	case buf[pos] == '\xC2' && buf[pos+1] == '\x85':
-		// NEL . LF
-		s = append(s, '\n')
-		parser.buffer_pos += 2
-	case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'):
-		// LS|PS . LS|PS
-		s = append(s, buf[parser.buffer_pos:pos+3]...)
-		parser.buffer_pos += 3
-	default:
-		return s
-	}
-	parser.mark.index++
-	parser.mark.column = 0
-	parser.mark.line++
-	parser.unread--
-	return s
-}
-
-// Get the next token.
-func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool {
-	// Erase the token object.
-	*token = yaml_token_t{} // [Go] Is this necessary?
-
-	// No tokens after STREAM-END or error.
-	if parser.stream_end_produced || parser.error != yaml_NO_ERROR {
-		return true
-	}
-
-	// Ensure that the tokens queue contains enough tokens.
-	if !parser.token_available {
-		if !yaml_parser_fetch_more_tokens(parser) {
-			return false
-		}
-	}
-
-	// Fetch the next token from the queue.
-	*token = parser.tokens[parser.tokens_head]
-	parser.tokens_head++
-	parser.tokens_parsed++
-	parser.token_available = false
-
-	if token.typ == yaml_STREAM_END_TOKEN {
-		parser.stream_end_produced = true
-	}
-	return true
-}
-
-// Set the scanner error and return false.
-func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
-	parser.error = yaml_SCANNER_ERROR
-	parser.context = context
-	parser.context_mark = context_mark
-	parser.problem = problem
-	parser.problem_mark = parser.mark
-	return false
-}
-
-func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool {
-	context := "while parsing a tag"
-	if directive {
-		context = "while parsing a %TAG directive"
-	}
-	return yaml_parser_set_scanner_error(parser, context, context_mark, problem)
-}
-
-func trace(args ...interface{}) func() {
-	pargs := append([]interface{}{"+++"}, args...)
-	fmt.Println(pargs...)
-	pargs = append([]interface{}{"---"}, args...)
-	return func() { fmt.Println(pargs...) }
-}
-
-// Ensure that the tokens queue contains at least one token which can be
-// returned to the Parser.
-func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool {
-	// While we need more tokens to fetch, do it.
-	for {
-		// Check if we really need to fetch more tokens.
-		need_more_tokens := false
-
-		if parser.tokens_head == len(parser.tokens) {
-			// Queue is empty.
-			need_more_tokens = true
-		} else {
-			// Check if any potential simple key may occupy the head position.
-			if !yaml_parser_stale_simple_keys(parser) {
-				return false
-			}
-
-			for i := range parser.simple_keys {
-				simple_key := &parser.simple_keys[i]
-				if simple_key.possible && simple_key.token_number == parser.tokens_parsed {
-					need_more_tokens = true
-					break
-				}
-			}
-		}
-
-		// We are finished.
-		if !need_more_tokens {
-			break
-		}
-		// Fetch the next token.
-		if !yaml_parser_fetch_next_token(parser) {
-			return false
-		}
-	}
-
-	parser.token_available = true
-	return true
-}
-
-// The dispatcher for token fetchers.
-func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool {
-	// Ensure that the buffer is initialized.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	// Check if we just started scanning.  Fetch STREAM-START then.
-	if !parser.stream_start_produced {
-		return yaml_parser_fetch_stream_start(parser)
-	}
-
-	// Eat whitespaces and comments until we reach the next token.
-	if !yaml_parser_scan_to_next_token(parser) {
-		return false
-	}
-
-	// Remove obsolete potential simple keys.
-	if !yaml_parser_stale_simple_keys(parser) {
-		return false
-	}
-
-	// Check the indentation level against the current column.
-	if !yaml_parser_unroll_indent(parser, parser.mark.column) {
-		return false
-	}
-
-	// Ensure that the buffer contains at least 4 characters.  4 is the length
-	// of the longest indicators ('--- ' and '... ').
-	if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
-		return false
-	}
-
-	// Is it the end of the stream?
-	if is_z(parser.buffer, parser.buffer_pos) {
-		return yaml_parser_fetch_stream_end(parser)
-	}
-
-	// Is it a directive?
-	if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' {
-		return yaml_parser_fetch_directive(parser)
-	}
-
-	buf := parser.buffer
-	pos := parser.buffer_pos
-
-	// Is it the document start indicator?
-	if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) {
-		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN)
-	}
-
-	// Is it the document end indicator?
-	if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) {
-		return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN)
-	}
-
-	// Is it the flow sequence start indicator?
-	if buf[pos] == '[' {
-		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN)
-	}
-
-	// Is it the flow mapping start indicator?
-	if parser.buffer[parser.buffer_pos] == '{' {
-		return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN)
-	}
-
-	// Is it the flow sequence end indicator?
-	if parser.buffer[parser.buffer_pos] == ']' {
-		return yaml_parser_fetch_flow_collection_end(parser,
-			yaml_FLOW_SEQUENCE_END_TOKEN)
-	}
-
-	// Is it the flow mapping end indicator?
-	if parser.buffer[parser.buffer_pos] == '}' {
-		return yaml_parser_fetch_flow_collection_end(parser,
-			yaml_FLOW_MAPPING_END_TOKEN)
-	}
-
-	// Is it the flow entry indicator?
-	if parser.buffer[parser.buffer_pos] == ',' {
-		return yaml_parser_fetch_flow_entry(parser)
-	}
-
-	// Is it the block entry indicator?
-	if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) {
-		return yaml_parser_fetch_block_entry(parser)
-	}
-
-	// Is it the key indicator?
-	if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
-		return yaml_parser_fetch_key(parser)
-	}
-
-	// Is it the value indicator?
-	if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
-		return yaml_parser_fetch_value(parser)
-	}
-
-	// Is it an alias?
-	if parser.buffer[parser.buffer_pos] == '*' {
-		return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN)
-	}
-
-	// Is it an anchor?
-	if parser.buffer[parser.buffer_pos] == '&' {
-		return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN)
-	}
-
-	// Is it a tag?
-	if parser.buffer[parser.buffer_pos] == '!' {
-		return yaml_parser_fetch_tag(parser)
-	}
-
-	// Is it a literal scalar?
-	if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 {
-		return yaml_parser_fetch_block_scalar(parser, true)
-	}
-
-	// Is it a folded scalar?
-	if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 {
-		return yaml_parser_fetch_block_scalar(parser, false)
-	}
-
-	// Is it a single-quoted scalar?
-	if parser.buffer[parser.buffer_pos] == '\'' {
-		return yaml_parser_fetch_flow_scalar(parser, true)
-	}
-
-	// Is it a double-quoted scalar?
-	if parser.buffer[parser.buffer_pos] == '"' {
-		return yaml_parser_fetch_flow_scalar(parser, false)
-	}
-
-	// Is it a plain scalar?
-	//
-	// A plain scalar may start with any non-blank characters except
-	//
-	//      '-', '?', ':', ',', '[', ']', '{', '}',
-	//      '#', '&', '*', '!', '|', '>', '\'', '\"',
-	//      '%', '@', '`'.
-	//
-	// In the block context (and, for the '-' indicator, in the flow context
-	// too), it may also start with the characters
-	//
-	//      '-', '?', ':'
-	//
-	// if it is followed by a non-space character.
-	//
-	// The last rule is more restrictive than the specification requires.
-	// [Go] Make this logic more reasonable.
-	//switch parser.buffer[parser.buffer_pos] {
-	//case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`':
-	//}
-	if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' ||
-		parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' ||
-		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' ||
-		parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
-		parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' ||
-		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' ||
-		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' ||
-		parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' ||
-		parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' ||
-		parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') ||
-		(parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) ||
-		(parser.flow_level == 0 &&
-			(parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') &&
-			!is_blankz(parser.buffer, parser.buffer_pos+1)) {
-		return yaml_parser_fetch_plain_scalar(parser)
-	}
-
-	// If we don't determine the token type so far, it is an error.
-	return yaml_parser_set_scanner_error(parser,
-		"while scanning for the next token", parser.mark,
-		"found character that cannot start any token")
-}
-
-// Check the list of potential simple keys and remove the positions that
-// cannot contain simple keys anymore.
-func yaml_parser_stale_simple_keys(parser *yaml_parser_t) bool {
-	// Check for a potential simple key for each flow level.
-	for i := range parser.simple_keys {
-		simple_key := &parser.simple_keys[i]
-
-		// The specification requires that a simple key
-		//
-		//  - is limited to a single line,
-		//  - is shorter than 1024 characters.
-		if simple_key.possible && (simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index) {
-
-			// Check if the potential simple key to be removed is required.
-			if simple_key.required {
-				return yaml_parser_set_scanner_error(parser,
-					"while scanning a simple key", simple_key.mark,
-					"could not find expected ':'")
-			}
-			simple_key.possible = false
-		}
-	}
-	return true
-}
-
-// Check if a simple key may start at the current position and add it if
-// needed.
-func yaml_parser_save_simple_key(parser *yaml_parser_t) bool {
-	// A simple key is required at the current position if the scanner is in
-	// the block context and the current column coincides with the indentation
-	// level.
-
-	required := parser.flow_level == 0 && parser.indent == parser.mark.column
-
-	//
-	// If the current position may start a simple key, save it.
-	//
-	if parser.simple_key_allowed {
-		simple_key := yaml_simple_key_t{
-			possible:     true,
-			required:     required,
-			token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head),
-		}
-		simple_key.mark = parser.mark
-
-		if !yaml_parser_remove_simple_key(parser) {
-			return false
-		}
-		parser.simple_keys[len(parser.simple_keys)-1] = simple_key
-	}
-	return true
-}
-
-// Remove a potential simple key at the current flow level.
-func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool {
-	i := len(parser.simple_keys) - 1
-	if parser.simple_keys[i].possible {
-		// If the key is required, it is an error.
-		if parser.simple_keys[i].required {
-			return yaml_parser_set_scanner_error(parser,
-				"while scanning a simple key", parser.simple_keys[i].mark,
-				"could not find expected ':'")
-		}
-	}
-	// Remove the key from the stack.
-	parser.simple_keys[i].possible = false
-	return true
-}
-
-// Increase the flow level and resize the simple key list if needed.
-func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool {
-	// Reset the simple key on the next level.
-	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
-
-	// Increase the flow level.
-	parser.flow_level++
-	return true
-}
-
-// Decrease the flow level.
-func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool {
-	if parser.flow_level > 0 {
-		parser.flow_level--
-		parser.simple_keys = parser.simple_keys[:len(parser.simple_keys)-1]
-	}
-	return true
-}
-
-// Push the current indentation level to the stack and set the new level
-// the current column is greater than the indentation level.  In this case,
-// append or insert the specified token into the token queue.
-func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool {
-	// In the flow context, do nothing.
-	if parser.flow_level > 0 {
-		return true
-	}
-
-	if parser.indent < column {
-		// Push the current indentation level to the stack and set the new
-		// indentation level.
-		parser.indents = append(parser.indents, parser.indent)
-		parser.indent = column
-
-		// Create a token and insert it into the queue.
-		token := yaml_token_t{
-			typ:        typ,
-			start_mark: mark,
-			end_mark:   mark,
-		}
-		if number > -1 {
-			number -= parser.tokens_parsed
-		}
-		yaml_insert_token(parser, number, &token)
-	}
-	return true
-}
-
-// Pop indentation levels from the indents stack until the current level
-// becomes less or equal to the column.  For each indentation level, append
-// the BLOCK-END token.
-func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool {
-	// In the flow context, do nothing.
-	if parser.flow_level > 0 {
-		return true
-	}
-
-	// Loop through the indentation levels in the stack.
-	for parser.indent > column {
-		// Create a token and append it to the queue.
-		token := yaml_token_t{
-			typ:        yaml_BLOCK_END_TOKEN,
-			start_mark: parser.mark,
-			end_mark:   parser.mark,
-		}
-		yaml_insert_token(parser, -1, &token)
-
-		// Pop the indentation level.
-		parser.indent = parser.indents[len(parser.indents)-1]
-		parser.indents = parser.indents[:len(parser.indents)-1]
-	}
-	return true
-}
-
-// Initialize the scanner and produce the STREAM-START token.
-func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool {
-
-	// Set the initial indentation.
-	parser.indent = -1
-
-	// Initialize the simple key stack.
-	parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
-
-	// A simple key is allowed at the beginning of the stream.
-	parser.simple_key_allowed = true
-
-	// We have started.
-	parser.stream_start_produced = true
-
-	// Create the STREAM-START token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_STREAM_START_TOKEN,
-		start_mark: parser.mark,
-		end_mark:   parser.mark,
-		encoding:   parser.encoding,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the STREAM-END token and shut down the scanner.
-func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool {
-
-	// Force new line.
-	if parser.mark.column != 0 {
-		parser.mark.column = 0
-		parser.mark.line++
-	}
-
-	// Reset the indentation level.
-	if !yaml_parser_unroll_indent(parser, -1) {
-		return false
-	}
-
-	// Reset simple keys.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	parser.simple_key_allowed = false
-
-	// Create the STREAM-END token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_STREAM_END_TOKEN,
-		start_mark: parser.mark,
-		end_mark:   parser.mark,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
-func yaml_parser_fetch_directive(parser *yaml_parser_t) bool {
-	// Reset the indentation level.
-	if !yaml_parser_unroll_indent(parser, -1) {
-		return false
-	}
-
-	// Reset simple keys.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	parser.simple_key_allowed = false
-
-	// Create the YAML-DIRECTIVE or TAG-DIRECTIVE token.
-	token := yaml_token_t{}
-	if !yaml_parser_scan_directive(parser, &token) {
-		return false
-	}
-	// Append the token to the queue.
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the DOCUMENT-START or DOCUMENT-END token.
-func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool {
-	// Reset the indentation level.
-	if !yaml_parser_unroll_indent(parser, -1) {
-		return false
-	}
-
-	// Reset simple keys.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	parser.simple_key_allowed = false
-
-	// Consume the token.
-	start_mark := parser.mark
-
-	skip(parser)
-	skip(parser)
-	skip(parser)
-
-	end_mark := parser.mark
-
-	// Create the DOCUMENT-START or DOCUMENT-END token.
-	token := yaml_token_t{
-		typ:        typ,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	// Append the token to the queue.
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
-func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool {
-	// The indicators '[' and '{' may start a simple key.
-	if !yaml_parser_save_simple_key(parser) {
-		return false
-	}
-
-	// Increase the flow level.
-	if !yaml_parser_increase_flow_level(parser) {
-		return false
-	}
-
-	// A simple key may follow the indicators '[' and '{'.
-	parser.simple_key_allowed = true
-
-	// Consume the token.
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token.
-	token := yaml_token_t{
-		typ:        typ,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	// Append the token to the queue.
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
-func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool {
-	// Reset any potential simple key on the current flow level.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	// Decrease the flow level.
-	if !yaml_parser_decrease_flow_level(parser) {
-		return false
-	}
-
-	// No simple keys after the indicators ']' and '}'.
-	parser.simple_key_allowed = false
-
-	// Consume the token.
-
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token.
-	token := yaml_token_t{
-		typ:        typ,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	// Append the token to the queue.
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the FLOW-ENTRY token.
-func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool {
-	// Reset any potential simple keys on the current flow level.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	// Simple keys are allowed after ','.
-	parser.simple_key_allowed = true
-
-	// Consume the token.
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the FLOW-ENTRY token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_FLOW_ENTRY_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the BLOCK-ENTRY token.
-func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool {
-	// Check if the scanner is in the block context.
-	if parser.flow_level == 0 {
-		// Check if we are allowed to start a new entry.
-		if !parser.simple_key_allowed {
-			return yaml_parser_set_scanner_error(parser, "", parser.mark,
-				"block sequence entries are not allowed in this context")
-		}
-		// Add the BLOCK-SEQUENCE-START token if needed.
-		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) {
-			return false
-		}
-	} else {
-		// It is an error for the '-' indicator to occur in the flow context,
-		// but we let the Parser detect and report about it because the Parser
-		// is able to point to the context.
-	}
-
-	// Reset any potential simple keys on the current flow level.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	// Simple keys are allowed after '-'.
-	parser.simple_key_allowed = true
-
-	// Consume the token.
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the BLOCK-ENTRY token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_BLOCK_ENTRY_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the KEY token.
-func yaml_parser_fetch_key(parser *yaml_parser_t) bool {
-
-	// In the block context, additional checks are required.
-	if parser.flow_level == 0 {
-		// Check if we are allowed to start a new key (not nessesary simple).
-		if !parser.simple_key_allowed {
-			return yaml_parser_set_scanner_error(parser, "", parser.mark,
-				"mapping keys are not allowed in this context")
-		}
-		// Add the BLOCK-MAPPING-START token if needed.
-		if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
-			return false
-		}
-	}
-
-	// Reset any potential simple keys on the current flow level.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	// Simple keys are allowed after '?' in the block context.
-	parser.simple_key_allowed = parser.flow_level == 0
-
-	// Consume the token.
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the KEY token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_KEY_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the VALUE token.
-func yaml_parser_fetch_value(parser *yaml_parser_t) bool {
-
-	simple_key := &parser.simple_keys[len(parser.simple_keys)-1]
-
-	// Have we found a simple key?
-	if simple_key.possible {
-		// Create the KEY token and insert it into the queue.
-		token := yaml_token_t{
-			typ:        yaml_KEY_TOKEN,
-			start_mark: simple_key.mark,
-			end_mark:   simple_key.mark,
-		}
-		yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token)
-
-		// In the block context, we may need to add the BLOCK-MAPPING-START token.
-		if !yaml_parser_roll_indent(parser, simple_key.mark.column,
-			simple_key.token_number,
-			yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) {
-			return false
-		}
-
-		// Remove the simple key.
-		simple_key.possible = false
-
-		// A simple key cannot follow another simple key.
-		parser.simple_key_allowed = false
-
-	} else {
-		// The ':' indicator follows a complex key.
-
-		// In the block context, extra checks are required.
-		if parser.flow_level == 0 {
-
-			// Check if we are allowed to start a complex value.
-			if !parser.simple_key_allowed {
-				return yaml_parser_set_scanner_error(parser, "", parser.mark,
-					"mapping values are not allowed in this context")
-			}
-
-			// Add the BLOCK-MAPPING-START token if needed.
-			if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
-				return false
-			}
-		}
-
-		// Simple keys after ':' are allowed in the block context.
-		parser.simple_key_allowed = parser.flow_level == 0
-	}
-
-	// Consume the token.
-	start_mark := parser.mark
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create the VALUE token and append it to the queue.
-	token := yaml_token_t{
-		typ:        yaml_VALUE_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the ALIAS or ANCHOR token.
-func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool {
-	// An anchor or an alias could be a simple key.
-	if !yaml_parser_save_simple_key(parser) {
-		return false
-	}
-
-	// A simple key cannot follow an anchor or an alias.
-	parser.simple_key_allowed = false
-
-	// Create the ALIAS or ANCHOR token and append it to the queue.
-	var token yaml_token_t
-	if !yaml_parser_scan_anchor(parser, &token, typ) {
-		return false
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the TAG token.
-func yaml_parser_fetch_tag(parser *yaml_parser_t) bool {
-	// A tag could be a simple key.
-	if !yaml_parser_save_simple_key(parser) {
-		return false
-	}
-
-	// A simple key cannot follow a tag.
-	parser.simple_key_allowed = false
-
-	// Create the TAG token and append it to the queue.
-	var token yaml_token_t
-	if !yaml_parser_scan_tag(parser, &token) {
-		return false
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
-func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool {
-	// Remove any potential simple keys.
-	if !yaml_parser_remove_simple_key(parser) {
-		return false
-	}
-
-	// A simple key may follow a block scalar.
-	parser.simple_key_allowed = true
-
-	// Create the SCALAR token and append it to the queue.
-	var token yaml_token_t
-	if !yaml_parser_scan_block_scalar(parser, &token, literal) {
-		return false
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
-func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool {
-	// A plain scalar could be a simple key.
-	if !yaml_parser_save_simple_key(parser) {
-		return false
-	}
-
-	// A simple key cannot follow a flow scalar.
-	parser.simple_key_allowed = false
-
-	// Create the SCALAR token and append it to the queue.
-	var token yaml_token_t
-	if !yaml_parser_scan_flow_scalar(parser, &token, single) {
-		return false
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Produce the SCALAR(...,plain) token.
-func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool {
-	// A plain scalar could be a simple key.
-	if !yaml_parser_save_simple_key(parser) {
-		return false
-	}
-
-	// A simple key cannot follow a flow scalar.
-	parser.simple_key_allowed = false
-
-	// Create the SCALAR token and append it to the queue.
-	var token yaml_token_t
-	if !yaml_parser_scan_plain_scalar(parser, &token) {
-		return false
-	}
-	yaml_insert_token(parser, -1, &token)
-	return true
-}
-
-// Eat whitespaces and comments until the next token is found.
-func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool {
-
-	// Until the next token is not found.
-	for {
-		// Allow the BOM mark to start a line.
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-		if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) {
-			skip(parser)
-		}
-
-		// Eat whitespaces.
-		// Tabs are allowed:
-		//  - in the flow context
-		//  - in the block context, but not at the beginning of the line or
-		//  after '-', '?', or ':' (complex value).
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-
-		for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') {
-			skip(parser)
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-
-		// Eat a comment until a line break.
-		if parser.buffer[parser.buffer_pos] == '#' {
-			for !is_breakz(parser.buffer, parser.buffer_pos) {
-				skip(parser)
-				if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-					return false
-				}
-			}
-		}
-
-		// If it is a line break, eat it.
-		if is_break(parser.buffer, parser.buffer_pos) {
-			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-				return false
-			}
-			skip_line(parser)
-
-			// In the block context, a new line may start a simple key.
-			if parser.flow_level == 0 {
-				parser.simple_key_allowed = true
-			}
-		} else {
-			break // We have found a token.
-		}
-	}
-
-	return true
-}
-
-// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
-//
-// Scope:
-//      %YAML    1.1    # a comment \n
-//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-//      %TAG    !yaml!  tag:yaml.org,2002:  \n
-//      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-//
-func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool {
-	// Eat '%'.
-	start_mark := parser.mark
-	skip(parser)
-
-	// Scan the directive name.
-	var name []byte
-	if !yaml_parser_scan_directive_name(parser, start_mark, &name) {
-		return false
-	}
-
-	// Is it a YAML directive?
-	if bytes.Equal(name, []byte("YAML")) {
-		// Scan the VERSION directive value.
-		var major, minor int8
-		if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) {
-			return false
-		}
-		end_mark := parser.mark
-
-		// Create a VERSION-DIRECTIVE token.
-		*token = yaml_token_t{
-			typ:        yaml_VERSION_DIRECTIVE_TOKEN,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			major:      major,
-			minor:      minor,
-		}
-
-		// Is it a TAG directive?
-	} else if bytes.Equal(name, []byte("TAG")) {
-		// Scan the TAG directive value.
-		var handle, prefix []byte
-		if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) {
-			return false
-		}
-		end_mark := parser.mark
-
-		// Create a TAG-DIRECTIVE token.
-		*token = yaml_token_t{
-			typ:        yaml_TAG_DIRECTIVE_TOKEN,
-			start_mark: start_mark,
-			end_mark:   end_mark,
-			value:      handle,
-			prefix:     prefix,
-		}
-
-		// Unknown directive.
-	} else {
-		yaml_parser_set_scanner_error(parser, "while scanning a directive",
-			start_mark, "found unknown directive name")
-		return false
-	}
-
-	// Eat the rest of the line including any comments.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	for is_blank(parser.buffer, parser.buffer_pos) {
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	if parser.buffer[parser.buffer_pos] == '#' {
-		for !is_breakz(parser.buffer, parser.buffer_pos) {
-			skip(parser)
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-	}
-
-	// Check if we are at the end of the line.
-	if !is_breakz(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a directive",
-			start_mark, "did not find expected comment or line break")
-		return false
-	}
-
-	// Eat a line break.
-	if is_break(parser.buffer, parser.buffer_pos) {
-		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-			return false
-		}
-		skip_line(parser)
-	}
-
-	return true
-}
-
-// Scan the directive name.
-//
-// Scope:
-//      %YAML   1.1     # a comment \n
-//       ^^^^
-//      %TAG    !yaml!  tag:yaml.org,2002:  \n
-//       ^^^
-//
-func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool {
-	// Consume the directive name.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	var s []byte
-	for is_alpha(parser.buffer, parser.buffer_pos) {
-		s = read(parser, s)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Check if the name is empty.
-	if len(s) == 0 {
-		yaml_parser_set_scanner_error(parser, "while scanning a directive",
-			start_mark, "could not find expected directive name")
-		return false
-	}
-
-	// Check for an blank character after the name.
-	if !is_blankz(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a directive",
-			start_mark, "found unexpected non-alphabetical character")
-		return false
-	}
-	*name = s
-	return true
-}
-
-// Scan the value of VERSION-DIRECTIVE.
-//
-// Scope:
-//      %YAML   1.1     # a comment \n
-//           ^^^^^^
-func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool {
-	// Eat whitespaces.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	for is_blank(parser.buffer, parser.buffer_pos) {
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Consume the major version number.
-	if !yaml_parser_scan_version_directive_number(parser, start_mark, major) {
-		return false
-	}
-
-	// Eat '.'.
-	if parser.buffer[parser.buffer_pos] != '.' {
-		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
-			start_mark, "did not find expected digit or '.' character")
-	}
-
-	skip(parser)
-
-	// Consume the minor version number.
-	if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) {
-		return false
-	}
-	return true
-}
-
-const max_number_length = 2
-
-// Scan the version number of VERSION-DIRECTIVE.
-//
-// Scope:
-//      %YAML   1.1     # a comment \n
-//              ^
-//      %YAML   1.1     # a comment \n
-//                ^
-func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool {
-
-	// Repeat while the next character is digit.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	var value, length int8
-	for is_digit(parser.buffer, parser.buffer_pos) {
-		// Check if the number is too long.
-		length++
-		if length > max_number_length {
-			return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
-				start_mark, "found extremely long version number")
-		}
-		value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos))
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Check if the number was present.
-	if length == 0 {
-		return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
-			start_mark, "did not find expected version number")
-	}
-	*number = value
-	return true
-}
-
-// Scan the value of a TAG-DIRECTIVE token.
-//
-// Scope:
-//      %TAG    !yaml!  tag:yaml.org,2002:  \n
-//          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-//
-func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool {
-	var handle_value, prefix_value []byte
-
-	// Eat whitespaces.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	for is_blank(parser.buffer, parser.buffer_pos) {
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Scan a handle.
-	if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) {
-		return false
-	}
-
-	// Expect a whitespace.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	if !is_blank(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
-			start_mark, "did not find expected whitespace")
-		return false
-	}
-
-	// Eat whitespaces.
-	for is_blank(parser.buffer, parser.buffer_pos) {
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Scan a prefix.
-	if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) {
-		return false
-	}
-
-	// Expect a whitespace or line break.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	if !is_blankz(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
-			start_mark, "did not find expected whitespace or line break")
-		return false
-	}
-
-	*handle = handle_value
-	*prefix = prefix_value
-	return true
-}
-
-func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool {
-	var s []byte
-
-	// Eat the indicator character.
-	start_mark := parser.mark
-	skip(parser)
-
-	// Consume the value.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	for is_alpha(parser.buffer, parser.buffer_pos) {
-		s = read(parser, s)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	end_mark := parser.mark
-
-	/*
-	 * Check if length of the anchor is greater than 0 and it is followed by
-	 * a whitespace character or one of the indicators:
-	 *
-	 *      '?', ':', ',', ']', '}', '%', '@', '`'.
-	 */
-
-	if len(s) == 0 ||
-		!(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' ||
-			parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' ||
-			parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' ||
-			parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' ||
-			parser.buffer[parser.buffer_pos] == '`') {
-		context := "while scanning an alias"
-		if typ == yaml_ANCHOR_TOKEN {
-			context = "while scanning an anchor"
-		}
-		yaml_parser_set_scanner_error(parser, context, start_mark,
-			"did not find expected alphabetic or numeric character")
-		return false
-	}
-
-	// Create a token.
-	*token = yaml_token_t{
-		typ:        typ,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		value:      s,
-	}
-
-	return true
-}
-
-/*
- * Scan a TAG token.
- */
-
-func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool {
-	var handle, suffix []byte
-
-	start_mark := parser.mark
-
-	// Check if the tag is in the canonical form.
-	if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-		return false
-	}
-
-	if parser.buffer[parser.buffer_pos+1] == '<' {
-		// Keep the handle as ''
-
-		// Eat '!<'
-		skip(parser)
-		skip(parser)
-
-		// Consume the tag value.
-		if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
-			return false
-		}
-
-		// Check for '>' and eat it.
-		if parser.buffer[parser.buffer_pos] != '>' {
-			yaml_parser_set_scanner_error(parser, "while scanning a tag",
-				start_mark, "did not find the expected '>'")
-			return false
-		}
-
-		skip(parser)
-	} else {
-		// The tag has either the '!suffix' or the '!handle!suffix' form.
-
-		// First, try to scan a handle.
-		if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) {
-			return false
-		}
-
-		// Check if it is, indeed, handle.
-		if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' {
-			// Scan the suffix now.
-			if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
-				return false
-			}
-		} else {
-			// It wasn't a handle after all.  Scan the rest of the tag.
-			if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) {
-				return false
-			}
-
-			// Set the handle to '!'.
-			handle = []byte{'!'}
-
-			// A special case: the '!' tag.  Set the handle to '' and the
-			// suffix to '!'.
-			if len(suffix) == 0 {
-				handle, suffix = suffix, handle
-			}
-		}
-	}
-
-	// Check the character which ends the tag.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	if !is_blankz(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a tag",
-			start_mark, "did not find expected whitespace or line break")
-		return false
-	}
-
-	end_mark := parser.mark
-
-	// Create a token.
-	*token = yaml_token_t{
-		typ:        yaml_TAG_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		value:      handle,
-		suffix:     suffix,
-	}
-	return true
-}
-
-// Scan a tag handle.
-func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool {
-	// Check the initial '!' character.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	if parser.buffer[parser.buffer_pos] != '!' {
-		yaml_parser_set_scanner_tag_error(parser, directive,
-			start_mark, "did not find expected '!'")
-		return false
-	}
-
-	var s []byte
-
-	// Copy the '!' character.
-	s = read(parser, s)
-
-	// Copy all subsequent alphabetical and numerical characters.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	for is_alpha(parser.buffer, parser.buffer_pos) {
-		s = read(parser, s)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-
-	// Check if the trailing character is '!' and copy it.
-	if parser.buffer[parser.buffer_pos] == '!' {
-		s = read(parser, s)
-	} else {
-		// It's either the '!' tag or not really a tag handle.  If it's a %TAG
-		// directive, it's an error.  If it's a tag token, it must be a part of URI.
-		if directive && string(s) != "!" {
-			yaml_parser_set_scanner_tag_error(parser, directive,
-				start_mark, "did not find expected '!'")
-			return false
-		}
-	}
-
-	*handle = s
-	return true
-}
-
-// Scan a tag.
-func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool {
-	//size_t length = head ? strlen((char *)head) : 0
-	var s []byte
-	hasTag := len(head) > 0
-
-	// Copy the head if needed.
-	//
-	// Note that we don't copy the leading '!' character.
-	if len(head) > 1 {
-		s = append(s, head[1:]...)
-	}
-
-	// Scan the tag.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	// The set of characters that may appear in URI is as follows:
-	//
-	//      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
-	//      '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
-	//      '%'.
-	// [Go] Convert this into more reasonable logic.
-	for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' ||
-		parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' ||
-		parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' ||
-		parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' ||
-		parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' ||
-		parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' ||
-		parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' ||
-		parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' ||
-		parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' ||
-		parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' ||
-		parser.buffer[parser.buffer_pos] == '%' {
-		// Check if it is a URI-escape sequence.
-		if parser.buffer[parser.buffer_pos] == '%' {
-			if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) {
-				return false
-			}
-		} else {
-			s = read(parser, s)
-		}
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-		hasTag = true
-	}
-
-	if !hasTag {
-		yaml_parser_set_scanner_tag_error(parser, directive,
-			start_mark, "did not find expected tag URI")
-		return false
-	}
-	*uri = s
-	return true
-}
-
-// Decode an URI-escape sequence corresponding to a single UTF-8 character.
-func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool {
-
-	// Decode the required number of characters.
-	w := 1024
-	for w > 0 {
-		// Check for a URI-escaped octet.
-		if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
-			return false
-		}
-
-		if !(parser.buffer[parser.buffer_pos] == '%' &&
-			is_hex(parser.buffer, parser.buffer_pos+1) &&
-			is_hex(parser.buffer, parser.buffer_pos+2)) {
-			return yaml_parser_set_scanner_tag_error(parser, directive,
-				start_mark, "did not find URI escaped octet")
-		}
-
-		// Get the octet.
-		octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2))
-
-		// If it is the leading octet, determine the length of the UTF-8 sequence.
-		if w == 1024 {
-			w = width(octet)
-			if w == 0 {
-				return yaml_parser_set_scanner_tag_error(parser, directive,
-					start_mark, "found an incorrect leading UTF-8 octet")
-			}
-		} else {
-			// Check if the trailing octet is correct.
-			if octet&0xC0 != 0x80 {
-				return yaml_parser_set_scanner_tag_error(parser, directive,
-					start_mark, "found an incorrect trailing UTF-8 octet")
-			}
-		}
-
-		// Copy the octet and move the pointers.
-		*s = append(*s, octet)
-		skip(parser)
-		skip(parser)
-		skip(parser)
-		w--
-	}
-	return true
-}
-
-// Scan a block scalar.
-func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool {
-	// Eat the indicator '|' or '>'.
-	start_mark := parser.mark
-	skip(parser)
-
-	// Scan the additional block scalar indicators.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-
-	// Check for a chomping indicator.
-	var chomping, increment int
-	if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
-		// Set the chomping method and eat the indicator.
-		if parser.buffer[parser.buffer_pos] == '+' {
-			chomping = +1
-		} else {
-			chomping = -1
-		}
-		skip(parser)
-
-		// Check for an indentation indicator.
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-		if is_digit(parser.buffer, parser.buffer_pos) {
-			// Check that the indentation is greater than 0.
-			if parser.buffer[parser.buffer_pos] == '0' {
-				yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
-					start_mark, "found an indentation indicator equal to 0")
-				return false
-			}
-
-			// Get the indentation level and eat the indicator.
-			increment = as_digit(parser.buffer, parser.buffer_pos)
-			skip(parser)
-		}
-
-	} else if is_digit(parser.buffer, parser.buffer_pos) {
-		// Do the same as above, but in the opposite order.
-
-		if parser.buffer[parser.buffer_pos] == '0' {
-			yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
-				start_mark, "found an indentation indicator equal to 0")
-			return false
-		}
-		increment = as_digit(parser.buffer, parser.buffer_pos)
-		skip(parser)
-
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-		if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
-			if parser.buffer[parser.buffer_pos] == '+' {
-				chomping = +1
-			} else {
-				chomping = -1
-			}
-			skip(parser)
-		}
-	}
-
-	// Eat whitespaces and comments to the end of the line.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	for is_blank(parser.buffer, parser.buffer_pos) {
-		skip(parser)
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-	}
-	if parser.buffer[parser.buffer_pos] == '#' {
-		for !is_breakz(parser.buffer, parser.buffer_pos) {
-			skip(parser)
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-	}
-
-	// Check if we are at the end of the line.
-	if !is_breakz(parser.buffer, parser.buffer_pos) {
-		yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
-			start_mark, "did not find expected comment or line break")
-		return false
-	}
-
-	// Eat a line break.
-	if is_break(parser.buffer, parser.buffer_pos) {
-		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-			return false
-		}
-		skip_line(parser)
-	}
-
-	end_mark := parser.mark
-
-	// Set the indentation level if it was specified.
-	var indent int
-	if increment > 0 {
-		if parser.indent >= 0 {
-			indent = parser.indent + increment
-		} else {
-			indent = increment
-		}
-	}
-
-	// Scan the leading line breaks and determine the indentation level if needed.
-	var s, leading_break, trailing_breaks []byte
-	if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
-		return false
-	}
-
-	// Scan the block scalar content.
-	if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-		return false
-	}
-	var leading_blank, trailing_blank bool
-	for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) {
-		// We are at the beginning of a non-empty line.
-
-		// Is it a trailing whitespace?
-		trailing_blank = is_blank(parser.buffer, parser.buffer_pos)
-
-		// Check if we need to fold the leading line break.
-		if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' {
-			// Do we need to join the lines by space?
-			if len(trailing_breaks) == 0 {
-				s = append(s, ' ')
-			}
-		} else {
-			s = append(s, leading_break...)
-		}
-		leading_break = leading_break[:0]
-
-		// Append the remaining line breaks.
-		s = append(s, trailing_breaks...)
-		trailing_breaks = trailing_breaks[:0]
-
-		// Is it a leading whitespace?
-		leading_blank = is_blank(parser.buffer, parser.buffer_pos)
-
-		// Consume the current line.
-		for !is_breakz(parser.buffer, parser.buffer_pos) {
-			s = read(parser, s)
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-
-		// Consume the line break.
-		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-			return false
-		}
-
-		leading_break = read_line(parser, leading_break)
-
-		// Eat the following indentation spaces and line breaks.
-		if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
-			return false
-		}
-	}
-
-	// Chomp the tail.
-	if chomping != -1 {
-		s = append(s, leading_break...)
-	}
-	if chomping == 1 {
-		s = append(s, trailing_breaks...)
-	}
-
-	// Create a token.
-	*token = yaml_token_t{
-		typ:        yaml_SCALAR_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		value:      s,
-		style:      yaml_LITERAL_SCALAR_STYLE,
-	}
-	if !literal {
-		token.style = yaml_FOLDED_SCALAR_STYLE
-	}
-	return true
-}
-
-// Scan indentation spaces and line breaks for a block scalar.  Determine the
-// indentation level if needed.
-func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool {
-	*end_mark = parser.mark
-
-	// Eat the indentation spaces and line breaks.
-	max_indent := 0
-	for {
-		// Eat the indentation spaces.
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-		for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) {
-			skip(parser)
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-		if parser.mark.column > max_indent {
-			max_indent = parser.mark.column
-		}
-
-		// Check for a tab character messing the indentation.
-		if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) {
-			return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
-				start_mark, "found a tab character where an indentation space is expected")
-		}
-
-		// Have we found a non-empty line?
-		if !is_break(parser.buffer, parser.buffer_pos) {
-			break
-		}
-
-		// Consume the line break.
-		if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-			return false
-		}
-		// [Go] Should really be returning breaks instead.
-		*breaks = read_line(parser, *breaks)
-		*end_mark = parser.mark
-	}
-
-	// Determine the indentation level if needed.
-	if *indent == 0 {
-		*indent = max_indent
-		if *indent < parser.indent+1 {
-			*indent = parser.indent + 1
-		}
-		if *indent < 1 {
-			*indent = 1
-		}
-	}
-	return true
-}
-
-// Scan a quoted scalar.
-func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool {
-	// Eat the left quote.
-	start_mark := parser.mark
-	skip(parser)
-
-	// Consume the content of the quoted scalar.
-	var s, leading_break, trailing_breaks, whitespaces []byte
-	for {
-		// Check that there are no document indicators at the beginning of the line.
-		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
-			return false
-		}
-
-		if parser.mark.column == 0 &&
-			((parser.buffer[parser.buffer_pos+0] == '-' &&
-				parser.buffer[parser.buffer_pos+1] == '-' &&
-				parser.buffer[parser.buffer_pos+2] == '-') ||
-				(parser.buffer[parser.buffer_pos+0] == '.' &&
-					parser.buffer[parser.buffer_pos+1] == '.' &&
-					parser.buffer[parser.buffer_pos+2] == '.')) &&
-			is_blankz(parser.buffer, parser.buffer_pos+3) {
-			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
-				start_mark, "found unexpected document indicator")
-			return false
-		}
-
-		// Check for EOF.
-		if is_z(parser.buffer, parser.buffer_pos) {
-			yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
-				start_mark, "found unexpected end of stream")
-			return false
-		}
-
-		// Consume non-blank characters.
-		leading_blanks := false
-		for !is_blankz(parser.buffer, parser.buffer_pos) {
-			if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' {
-				// Is is an escaped single quote.
-				s = append(s, '\'')
-				skip(parser)
-				skip(parser)
-
-			} else if single && parser.buffer[parser.buffer_pos] == '\'' {
-				// It is a right single quote.
-				break
-			} else if !single && parser.buffer[parser.buffer_pos] == '"' {
-				// It is a right double quote.
-				break
-
-			} else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) {
-				// It is an escaped line break.
-				if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
-					return false
-				}
-				skip(parser)
-				skip_line(parser)
-				leading_blanks = true
-				break
-
-			} else if !single && parser.buffer[parser.buffer_pos] == '\\' {
-				// It is an escape sequence.
-				code_length := 0
-
-				// Check the escape character.
-				switch parser.buffer[parser.buffer_pos+1] {
-				case '0':
-					s = append(s, 0)
-				case 'a':
-					s = append(s, '\x07')
-				case 'b':
-					s = append(s, '\x08')
-				case 't', '\t':
-					s = append(s, '\x09')
-				case 'n':
-					s = append(s, '\x0A')
-				case 'v':
-					s = append(s, '\x0B')
-				case 'f':
-					s = append(s, '\x0C')
-				case 'r':
-					s = append(s, '\x0D')
-				case 'e':
-					s = append(s, '\x1B')
-				case ' ':
-					s = append(s, '\x20')
-				case '"':
-					s = append(s, '"')
-				case '\'':
-					s = append(s, '\'')
-				case '\\':
-					s = append(s, '\\')
-				case 'N': // NEL (#x85)
-					s = append(s, '\xC2')
-					s = append(s, '\x85')
-				case '_': // #xA0
-					s = append(s, '\xC2')
-					s = append(s, '\xA0')
-				case 'L': // LS (#x2028)
-					s = append(s, '\xE2')
-					s = append(s, '\x80')
-					s = append(s, '\xA8')
-				case 'P': // PS (#x2029)
-					s = append(s, '\xE2')
-					s = append(s, '\x80')
-					s = append(s, '\xA9')
-				case 'x':
-					code_length = 2
-				case 'u':
-					code_length = 4
-				case 'U':
-					code_length = 8
-				default:
-					yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
-						start_mark, "found unknown escape character")
-					return false
-				}
-
-				skip(parser)
-				skip(parser)
-
-				// Consume an arbitrary escape code.
-				if code_length > 0 {
-					var value int
-
-					// Scan the character value.
-					if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) {
-						return false
-					}
-					for k := 0; k < code_length; k++ {
-						if !is_hex(parser.buffer, parser.buffer_pos+k) {
-							yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
-								start_mark, "did not find expected hexdecimal number")
-							return false
-						}
-						value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k)
-					}
-
-					// Check the value and write the character.
-					if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
-						yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
-							start_mark, "found invalid Unicode character escape code")
-						return false
-					}
-					if value <= 0x7F {
-						s = append(s, byte(value))
-					} else if value <= 0x7FF {
-						s = append(s, byte(0xC0+(value>>6)))
-						s = append(s, byte(0x80+(value&0x3F)))
-					} else if value <= 0xFFFF {
-						s = append(s, byte(0xE0+(value>>12)))
-						s = append(s, byte(0x80+((value>>6)&0x3F)))
-						s = append(s, byte(0x80+(value&0x3F)))
-					} else {
-						s = append(s, byte(0xF0+(value>>18)))
-						s = append(s, byte(0x80+((value>>12)&0x3F)))
-						s = append(s, byte(0x80+((value>>6)&0x3F)))
-						s = append(s, byte(0x80+(value&0x3F)))
-					}
-
-					// Advance the pointer.
-					for k := 0; k < code_length; k++ {
-						skip(parser)
-					}
-				}
-			} else {
-				// It is a non-escaped non-blank character.
-				s = read(parser, s)
-			}
-			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-				return false
-			}
-		}
-
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-
-		// Check if we are at the end of the scalar.
-		if single {
-			if parser.buffer[parser.buffer_pos] == '\'' {
-				break
-			}
-		} else {
-			if parser.buffer[parser.buffer_pos] == '"' {
-				break
-			}
-		}
-
-		// Consume blank characters.
-		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
-			if is_blank(parser.buffer, parser.buffer_pos) {
-				// Consume a space or a tab character.
-				if !leading_blanks {
-					whitespaces = read(parser, whitespaces)
-				} else {
-					skip(parser)
-				}
-			} else {
-				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-					return false
-				}
-
-				// Check if it is a first line break.
-				if !leading_blanks {
-					whitespaces = whitespaces[:0]
-					leading_break = read_line(parser, leading_break)
-					leading_blanks = true
-				} else {
-					trailing_breaks = read_line(parser, trailing_breaks)
-				}
-			}
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-
-		// Join the whitespaces or fold line breaks.
-		if leading_blanks {
-			// Do we need to fold line breaks?
-			if len(leading_break) > 0 && leading_break[0] == '\n' {
-				if len(trailing_breaks) == 0 {
-					s = append(s, ' ')
-				} else {
-					s = append(s, trailing_breaks...)
-				}
-			} else {
-				s = append(s, leading_break...)
-				s = append(s, trailing_breaks...)
-			}
-			trailing_breaks = trailing_breaks[:0]
-			leading_break = leading_break[:0]
-		} else {
-			s = append(s, whitespaces...)
-			whitespaces = whitespaces[:0]
-		}
-	}
-
-	// Eat the right quote.
-	skip(parser)
-	end_mark := parser.mark
-
-	// Create a token.
-	*token = yaml_token_t{
-		typ:        yaml_SCALAR_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		value:      s,
-		style:      yaml_SINGLE_QUOTED_SCALAR_STYLE,
-	}
-	if !single {
-		token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
-	}
-	return true
-}
-
-// Scan a plain scalar.
-func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool {
-
-	var s, leading_break, trailing_breaks, whitespaces []byte
-	var leading_blanks bool
-	var indent = parser.indent + 1
-
-	start_mark := parser.mark
-	end_mark := parser.mark
-
-	// Consume the content of the plain scalar.
-	for {
-		// Check for a document indicator.
-		if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
-			return false
-		}
-		if parser.mark.column == 0 &&
-			((parser.buffer[parser.buffer_pos+0] == '-' &&
-				parser.buffer[parser.buffer_pos+1] == '-' &&
-				parser.buffer[parser.buffer_pos+2] == '-') ||
-				(parser.buffer[parser.buffer_pos+0] == '.' &&
-					parser.buffer[parser.buffer_pos+1] == '.' &&
-					parser.buffer[parser.buffer_pos+2] == '.')) &&
-			is_blankz(parser.buffer, parser.buffer_pos+3) {
-			break
-		}
-
-		// Check for a comment.
-		if parser.buffer[parser.buffer_pos] == '#' {
-			break
-		}
-
-		// Consume non-blank characters.
-		for !is_blankz(parser.buffer, parser.buffer_pos) {
-
-			// Check for indicators that may end a plain scalar.
-			if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) ||
-				(parser.flow_level > 0 &&
-					(parser.buffer[parser.buffer_pos] == ',' ||
-						parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' ||
-						parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
-						parser.buffer[parser.buffer_pos] == '}')) {
-				break
-			}
-
-			// Check if we need to join whitespaces and breaks.
-			if leading_blanks || len(whitespaces) > 0 {
-				if leading_blanks {
-					// Do we need to fold line breaks?
-					if leading_break[0] == '\n' {
-						if len(trailing_breaks) == 0 {
-							s = append(s, ' ')
-						} else {
-							s = append(s, trailing_breaks...)
-						}
-					} else {
-						s = append(s, leading_break...)
-						s = append(s, trailing_breaks...)
-					}
-					trailing_breaks = trailing_breaks[:0]
-					leading_break = leading_break[:0]
-					leading_blanks = false
-				} else {
-					s = append(s, whitespaces...)
-					whitespaces = whitespaces[:0]
-				}
-			}
-
-			// Copy the character.
-			s = read(parser, s)
-
-			end_mark = parser.mark
-			if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-				return false
-			}
-		}
-
-		// Is it the end?
-		if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) {
-			break
-		}
-
-		// Consume blank characters.
-		if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-			return false
-		}
-
-		for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
-			if is_blank(parser.buffer, parser.buffer_pos) {
-
-				// Check for tab characters that abuse indentation.
-				if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) {
-					yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
-						start_mark, "found a tab character that violates indentation")
-					return false
-				}
-
-				// Consume a space or a tab character.
-				if !leading_blanks {
-					whitespaces = read(parser, whitespaces)
-				} else {
-					skip(parser)
-				}
-			} else {
-				if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
-					return false
-				}
-
-				// Check if it is a first line break.
-				if !leading_blanks {
-					whitespaces = whitespaces[:0]
-					leading_break = read_line(parser, leading_break)
-					leading_blanks = true
-				} else {
-					trailing_breaks = read_line(parser, trailing_breaks)
-				}
-			}
-			if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
-				return false
-			}
-		}
-
-		// Check indentation level.
-		if parser.flow_level == 0 && parser.mark.column < indent {
-			break
-		}
-	}
-
-	// Create a token.
-	*token = yaml_token_t{
-		typ:        yaml_SCALAR_TOKEN,
-		start_mark: start_mark,
-		end_mark:   end_mark,
-		value:      s,
-		style:      yaml_PLAIN_SCALAR_STYLE,
-	}
-
-	// Note that we change the 'simple_key_allowed' flag.
-	if leading_blanks {
-		parser.simple_key_allowed = true
-	}
-	return true
-}
diff --git a/vendor/gopkg.in/yaml.v2/sorter.go b/vendor/gopkg.in/yaml.v2/sorter.go
deleted file mode 100644
index 4c45e66..0000000
--- a/vendor/gopkg.in/yaml.v2/sorter.go
+++ /dev/null
@@ -1,113 +0,0 @@
-package yaml
-
-import (
-	"reflect"
-	"unicode"
-)
-
-type keyList []reflect.Value
-
-func (l keyList) Len() int      { return len(l) }
-func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
-func (l keyList) Less(i, j int) bool {
-	a := l[i]
-	b := l[j]
-	ak := a.Kind()
-	bk := b.Kind()
-	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
-		a = a.Elem()
-		ak = a.Kind()
-	}
-	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
-		b = b.Elem()
-		bk = b.Kind()
-	}
-	af, aok := keyFloat(a)
-	bf, bok := keyFloat(b)
-	if aok && bok {
-		if af != bf {
-			return af < bf
-		}
-		if ak != bk {
-			return ak < bk
-		}
-		return numLess(a, b)
-	}
-	if ak != reflect.String || bk != reflect.String {
-		return ak < bk
-	}
-	ar, br := []rune(a.String()), []rune(b.String())
-	for i := 0; i < len(ar) && i < len(br); i++ {
-		if ar[i] == br[i] {
-			continue
-		}
-		al := unicode.IsLetter(ar[i])
-		bl := unicode.IsLetter(br[i])
-		if al && bl {
-			return ar[i] < br[i]
-		}
-		if al || bl {
-			return bl
-		}
-		var ai, bi int
-		var an, bn int64
-		if ar[i] == '0' || br[i] == '0' {
-			for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- {
-				if ar[j] != '0' {
-					an = 1
-					bn = 1
-					break
-				}
-			}
-		}
-		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
-			an = an*10 + int64(ar[ai]-'0')
-		}
-		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
-			bn = bn*10 + int64(br[bi]-'0')
-		}
-		if an != bn {
-			return an < bn
-		}
-		if ai != bi {
-			return ai < bi
-		}
-		return ar[i] < br[i]
-	}
-	return len(ar) < len(br)
-}
-
-// keyFloat returns a float value for v if it is a number/bool
-// and whether it is a number/bool or not.
-func keyFloat(v reflect.Value) (f float64, ok bool) {
-	switch v.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return float64(v.Int()), true
-	case reflect.Float32, reflect.Float64:
-		return v.Float(), true
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return float64(v.Uint()), true
-	case reflect.Bool:
-		if v.Bool() {
-			return 1, true
-		}
-		return 0, true
-	}
-	return 0, false
-}
-
-// numLess returns whether a < b.
-// a and b must necessarily have the same kind.
-func numLess(a, b reflect.Value) bool {
-	switch a.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return a.Int() < b.Int()
-	case reflect.Float32, reflect.Float64:
-		return a.Float() < b.Float()
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return a.Uint() < b.Uint()
-	case reflect.Bool:
-		return !a.Bool() && b.Bool()
-	}
-	panic("not a number")
-}
diff --git a/vendor/gopkg.in/yaml.v2/writerc.go b/vendor/gopkg.in/yaml.v2/writerc.go
deleted file mode 100644
index a2dde60..0000000
--- a/vendor/gopkg.in/yaml.v2/writerc.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package yaml
-
-// Set the writer error and return false.
-func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
-	emitter.error = yaml_WRITER_ERROR
-	emitter.problem = problem
-	return false
-}
-
-// Flush the output buffer.
-func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
-	if emitter.write_handler == nil {
-		panic("write handler not set")
-	}
-
-	// Check if the buffer is empty.
-	if emitter.buffer_pos == 0 {
-		return true
-	}
-
-	if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
-		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
-	}
-	emitter.buffer_pos = 0
-	return true
-}
diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go
deleted file mode 100644
index de85aa4..0000000
--- a/vendor/gopkg.in/yaml.v2/yaml.go
+++ /dev/null
@@ -1,466 +0,0 @@
-// Package yaml implements YAML support for the Go language.
-//
-// Source code and other details for the project are available at GitHub:
-//
-//   https://github.com/go-yaml/yaml
-//
-package yaml
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"reflect"
-	"strings"
-	"sync"
-)
-
-// MapSlice encodes and decodes as a YAML map.
-// The order of keys is preserved when encoding and decoding.
-type MapSlice []MapItem
-
-// MapItem is an item in a MapSlice.
-type MapItem struct {
-	Key, Value interface{}
-}
-
-// The Unmarshaler interface may be implemented by types to customize their
-// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
-// method receives a function that may be called to unmarshal the original
-// YAML value into a field or variable. It is safe to call the unmarshal
-// function parameter more than once if necessary.
-type Unmarshaler interface {
-	UnmarshalYAML(unmarshal func(interface{}) error) error
-}
-
-// The Marshaler interface may be implemented by types to customize their
-// behavior when being marshaled into a YAML document. The returned value
-// is marshaled in place of the original value implementing Marshaler.
-//
-// If an error is returned by MarshalYAML, the marshaling procedure stops
-// and returns with the provided error.
-type Marshaler interface {
-	MarshalYAML() (interface{}, error)
-}
-
-// Unmarshal decodes the first document found within the in byte slice
-// and assigns decoded values into the out value.
-//
-// Maps and pointers (to a struct, string, int, etc) are accepted as out
-// values. If an internal pointer within a struct is not initialized,
-// the yaml package will initialize it if necessary for unmarshalling
-// the provided data. The out parameter must not be nil.
-//
-// The type of the decoded values should be compatible with the respective
-// values in out. If one or more values cannot be decoded due to a type
-// mismatches, decoding continues partially until the end of the YAML
-// content, and a *yaml.TypeError is returned with details for all
-// missed values.
-//
-// Struct fields are only unmarshalled if they are exported (have an
-// upper case first letter), and are unmarshalled using the field name
-// lowercased as the default key. Custom keys may be defined via the
-// "yaml" name in the field tag: the content preceding the first comma
-// is used as the key, and the following comma-separated options are
-// used to tweak the marshalling process (see Marshal).
-// Conflicting names result in a runtime error.
-//
-// For example:
-//
-//     type T struct {
-//         F int `yaml:"a,omitempty"`
-//         B int
-//     }
-//     var t T
-//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
-//
-// See the documentation of Marshal for the format of tags and a list of
-// supported tag options.
-//
-func Unmarshal(in []byte, out interface{}) (err error) {
-	return unmarshal(in, out, false)
-}
-
-// UnmarshalStrict is like Unmarshal except that any fields that are found
-// in the data that do not have corresponding struct members, or mapping
-// keys that are duplicates, will result in
-// an error.
-func UnmarshalStrict(in []byte, out interface{}) (err error) {
-	return unmarshal(in, out, true)
-}
-
-// A Decorder reads and decodes YAML values from an input stream.
-type Decoder struct {
-	strict bool
-	parser *parser
-}
-
-// NewDecoder returns a new decoder that reads from r.
-//
-// The decoder introduces its own buffering and may read
-// data from r beyond the YAML values requested.
-func NewDecoder(r io.Reader) *Decoder {
-	return &Decoder{
-		parser: newParserFromReader(r),
-	}
-}
-
-// SetStrict sets whether strict decoding behaviour is enabled when
-// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict.
-func (dec *Decoder) SetStrict(strict bool) {
-	dec.strict = strict
-}
-
-// Decode reads the next YAML-encoded value from its input
-// and stores it in the value pointed to by v.
-//
-// See the documentation for Unmarshal for details about the
-// conversion of YAML into a Go value.
-func (dec *Decoder) Decode(v interface{}) (err error) {
-	d := newDecoder(dec.strict)
-	defer handleErr(&err)
-	node := dec.parser.parse()
-	if node == nil {
-		return io.EOF
-	}
-	out := reflect.ValueOf(v)
-	if out.Kind() == reflect.Ptr && !out.IsNil() {
-		out = out.Elem()
-	}
-	d.unmarshal(node, out)
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-func unmarshal(in []byte, out interface{}, strict bool) (err error) {
-	defer handleErr(&err)
-	d := newDecoder(strict)
-	p := newParser(in)
-	defer p.destroy()
-	node := p.parse()
-	if node != nil {
-		v := reflect.ValueOf(out)
-		if v.Kind() == reflect.Ptr && !v.IsNil() {
-			v = v.Elem()
-		}
-		d.unmarshal(node, v)
-	}
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-// Marshal serializes the value provided into a YAML document. The structure
-// of the generated document will reflect the structure of the value itself.
-// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
-//
-// Struct fields are only marshalled if they are exported (have an upper case
-// first letter), and are marshalled using the field name lowercased as the
-// default key. Custom keys may be defined via the "yaml" name in the field
-// tag: the content preceding the first comma is used as the key, and the
-// following comma-separated options are used to tweak the marshalling process.
-// Conflicting names result in a runtime error.
-//
-// The field tag format accepted is:
-//
-//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
-//
-// The following flags are currently supported:
-//
-//     omitempty    Only include the field if it's not set to the zero
-//                  value for the type or to empty slices or maps.
-//                  Zero valued structs will be omitted if all their public
-//                  fields are zero, unless they implement an IsZero
-//                  method (see the IsZeroer interface type), in which
-//                  case the field will be included if that method returns true.
-//
-//     flow         Marshal using a flow style (useful for structs,
-//                  sequences and maps).
-//
-//     inline       Inline the field, which must be a struct or a map,
-//                  causing all of its fields or keys to be processed as if
-//                  they were part of the outer struct. For maps, keys must
-//                  not conflict with the yaml keys of other struct fields.
-//
-// In addition, if the key is "-", the field is ignored.
-//
-// For example:
-//
-//     type T struct {
-//         F int `yaml:"a,omitempty"`
-//         B int
-//     }
-//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
-//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
-//
-func Marshal(in interface{}) (out []byte, err error) {
-	defer handleErr(&err)
-	e := newEncoder()
-	defer e.destroy()
-	e.marshalDoc("", reflect.ValueOf(in))
-	e.finish()
-	out = e.out
-	return
-}
-
-// An Encoder writes YAML values to an output stream.
-type Encoder struct {
-	encoder *encoder
-}
-
-// NewEncoder returns a new encoder that writes to w.
-// The Encoder should be closed after use to flush all data
-// to w.
-func NewEncoder(w io.Writer) *Encoder {
-	return &Encoder{
-		encoder: newEncoderWithWriter(w),
-	}
-}
-
-// Encode writes the YAML encoding of v to the stream.
-// If multiple items are encoded to the stream, the
-// second and subsequent document will be preceded
-// with a "---" document separator, but the first will not.
-//
-// See the documentation for Marshal for details about the conversion of Go
-// values to YAML.
-func (e *Encoder) Encode(v interface{}) (err error) {
-	defer handleErr(&err)
-	e.encoder.marshalDoc("", reflect.ValueOf(v))
-	return nil
-}
-
-// Close closes the encoder by writing any remaining data.
-// It does not write a stream terminating string "...".
-func (e *Encoder) Close() (err error) {
-	defer handleErr(&err)
-	e.encoder.finish()
-	return nil
-}
-
-func handleErr(err *error) {
-	if v := recover(); v != nil {
-		if e, ok := v.(yamlError); ok {
-			*err = e.err
-		} else {
-			panic(v)
-		}
-	}
-}
-
-type yamlError struct {
-	err error
-}
-
-func fail(err error) {
-	panic(yamlError{err})
-}
-
-func failf(format string, args ...interface{}) {
-	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
-}
-
-// A TypeError is returned by Unmarshal when one or more fields in
-// the YAML document cannot be properly decoded into the requested
-// types. When this error is returned, the value is still
-// unmarshaled partially.
-type TypeError struct {
-	Errors []string
-}
-
-func (e *TypeError) Error() string {
-	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
-}
-
-// --------------------------------------------------------------------------
-// Maintain a mapping of keys to structure field indexes
-
-// The code in this section was copied from mgo/bson.
-
-// structInfo holds details for the serialization of fields of
-// a given struct.
-type structInfo struct {
-	FieldsMap  map[string]fieldInfo
-	FieldsList []fieldInfo
-
-	// InlineMap is the number of the field in the struct that
-	// contains an ,inline map, or -1 if there's none.
-	InlineMap int
-}
-
-type fieldInfo struct {
-	Key       string
-	Num       int
-	OmitEmpty bool
-	Flow      bool
-	// Id holds the unique field identifier, so we can cheaply
-	// check for field duplicates without maintaining an extra map.
-	Id int
-
-	// Inline holds the field index if the field is part of an inlined struct.
-	Inline []int
-}
-
-var structMap = make(map[reflect.Type]*structInfo)
-var fieldMapMutex sync.RWMutex
-
-func getStructInfo(st reflect.Type) (*structInfo, error) {
-	fieldMapMutex.RLock()
-	sinfo, found := structMap[st]
-	fieldMapMutex.RUnlock()
-	if found {
-		return sinfo, nil
-	}
-
-	n := st.NumField()
-	fieldsMap := make(map[string]fieldInfo)
-	fieldsList := make([]fieldInfo, 0, n)
-	inlineMap := -1
-	for i := 0; i != n; i++ {
-		field := st.Field(i)
-		if field.PkgPath != "" && !field.Anonymous {
-			continue // Private field
-		}
-
-		info := fieldInfo{Num: i}
-
-		tag := field.Tag.Get("yaml")
-		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
-			tag = string(field.Tag)
-		}
-		if tag == "-" {
-			continue
-		}
-
-		inline := false
-		fields := strings.Split(tag, ",")
-		if len(fields) > 1 {
-			for _, flag := range fields[1:] {
-				switch flag {
-				case "omitempty":
-					info.OmitEmpty = true
-				case "flow":
-					info.Flow = true
-				case "inline":
-					inline = true
-				default:
-					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
-				}
-			}
-			tag = fields[0]
-		}
-
-		if inline {
-			switch field.Type.Kind() {
-			case reflect.Map:
-				if inlineMap >= 0 {
-					return nil, errors.New("Multiple ,inline maps in struct " + st.String())
-				}
-				if field.Type.Key() != reflect.TypeOf("") {
-					return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
-				}
-				inlineMap = info.Num
-			case reflect.Struct:
-				sinfo, err := getStructInfo(field.Type)
-				if err != nil {
-					return nil, err
-				}
-				for _, finfo := range sinfo.FieldsList {
-					if _, found := fieldsMap[finfo.Key]; found {
-						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
-						return nil, errors.New(msg)
-					}
-					if finfo.Inline == nil {
-						finfo.Inline = []int{i, finfo.Num}
-					} else {
-						finfo.Inline = append([]int{i}, finfo.Inline...)
-					}
-					finfo.Id = len(fieldsList)
-					fieldsMap[finfo.Key] = finfo
-					fieldsList = append(fieldsList, finfo)
-				}
-			default:
-				//return nil, errors.New("Option ,inline needs a struct value or map field")
-				return nil, errors.New("Option ,inline needs a struct value field")
-			}
-			continue
-		}
-
-		if tag != "" {
-			info.Key = tag
-		} else {
-			info.Key = strings.ToLower(field.Name)
-		}
-
-		if _, found = fieldsMap[info.Key]; found {
-			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
-			return nil, errors.New(msg)
-		}
-
-		info.Id = len(fieldsList)
-		fieldsList = append(fieldsList, info)
-		fieldsMap[info.Key] = info
-	}
-
-	sinfo = &structInfo{
-		FieldsMap:  fieldsMap,
-		FieldsList: fieldsList,
-		InlineMap:  inlineMap,
-	}
-
-	fieldMapMutex.Lock()
-	structMap[st] = sinfo
-	fieldMapMutex.Unlock()
-	return sinfo, nil
-}
-
-// IsZeroer is used to check whether an object is zero to
-// determine whether it should be omitted when marshaling
-// with the omitempty flag. One notable implementation
-// is time.Time.
-type IsZeroer interface {
-	IsZero() bool
-}
-
-func isZero(v reflect.Value) bool {
-	kind := v.Kind()
-	if z, ok := v.Interface().(IsZeroer); ok {
-		if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
-			return true
-		}
-		return z.IsZero()
-	}
-	switch kind {
-	case reflect.String:
-		return len(v.String()) == 0
-	case reflect.Interface, reflect.Ptr:
-		return v.IsNil()
-	case reflect.Slice:
-		return v.Len() == 0
-	case reflect.Map:
-		return v.Len() == 0
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return v.Int() == 0
-	case reflect.Float32, reflect.Float64:
-		return v.Float() == 0
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return v.Uint() == 0
-	case reflect.Bool:
-		return !v.Bool()
-	case reflect.Struct:
-		vt := v.Type()
-		for i := v.NumField() - 1; i >= 0; i-- {
-			if vt.Field(i).PkgPath != "" {
-				continue // Private field
-			}
-			if !isZero(v.Field(i)) {
-				return false
-			}
-		}
-		return true
-	}
-	return false
-}
diff --git a/vendor/gopkg.in/yaml.v2/yamlh.go b/vendor/gopkg.in/yaml.v2/yamlh.go
deleted file mode 100644
index e25cee5..0000000
--- a/vendor/gopkg.in/yaml.v2/yamlh.go
+++ /dev/null
@@ -1,738 +0,0 @@
-package yaml
-
-import (
-	"fmt"
-	"io"
-)
-
-// The version directive data.
-type yaml_version_directive_t struct {
-	major int8 // The major version number.
-	minor int8 // The minor version number.
-}
-
-// The tag directive data.
-type yaml_tag_directive_t struct {
-	handle []byte // The tag handle.
-	prefix []byte // The tag prefix.
-}
-
-type yaml_encoding_t int
-
-// The stream encoding.
-const (
-	// Let the parser choose the encoding.
-	yaml_ANY_ENCODING yaml_encoding_t = iota
-
-	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
-	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
-	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
-)
-
-type yaml_break_t int
-
-// Line break types.
-const (
-	// Let the parser choose the break type.
-	yaml_ANY_BREAK yaml_break_t = iota
-
-	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
-	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
-	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
-)
-
-type yaml_error_type_t int
-
-// Many bad things could happen with the parser and emitter.
-const (
-	// No error is produced.
-	yaml_NO_ERROR yaml_error_type_t = iota
-
-	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
-	yaml_READER_ERROR   // Cannot read or decode the input stream.
-	yaml_SCANNER_ERROR  // Cannot scan the input stream.
-	yaml_PARSER_ERROR   // Cannot parse the input stream.
-	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
-	yaml_WRITER_ERROR   // Cannot write to the output stream.
-	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
-)
-
-// The pointer position.
-type yaml_mark_t struct {
-	index  int // The position index.
-	line   int // The position line.
-	column int // The position column.
-}
-
-// Node Styles
-
-type yaml_style_t int8
-
-type yaml_scalar_style_t yaml_style_t
-
-// Scalar styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
-
-	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
-	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
-	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
-	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
-	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
-)
-
-type yaml_sequence_style_t yaml_style_t
-
-// Sequence styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
-
-	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
-	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
-)
-
-type yaml_mapping_style_t yaml_style_t
-
-// Mapping styles.
-const (
-	// Let the emitter choose the style.
-	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
-
-	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
-	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
-)
-
-// Tokens
-
-type yaml_token_type_t int
-
-// Token types.
-const (
-	// An empty token.
-	yaml_NO_TOKEN yaml_token_type_t = iota
-
-	yaml_STREAM_START_TOKEN // A STREAM-START token.
-	yaml_STREAM_END_TOKEN   // A STREAM-END token.
-
-	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
-	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
-	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
-	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
-
-	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
-	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
-	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
-
-	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
-	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
-	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
-	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
-
-	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
-	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
-	yaml_KEY_TOKEN         // A KEY token.
-	yaml_VALUE_TOKEN       // A VALUE token.
-
-	yaml_ALIAS_TOKEN  // An ALIAS token.
-	yaml_ANCHOR_TOKEN // An ANCHOR token.
-	yaml_TAG_TOKEN    // A TAG token.
-	yaml_SCALAR_TOKEN // A SCALAR token.
-)
-
-func (tt yaml_token_type_t) String() string {
-	switch tt {
-	case yaml_NO_TOKEN:
-		return "yaml_NO_TOKEN"
-	case yaml_STREAM_START_TOKEN:
-		return "yaml_STREAM_START_TOKEN"
-	case yaml_STREAM_END_TOKEN:
-		return "yaml_STREAM_END_TOKEN"
-	case yaml_VERSION_DIRECTIVE_TOKEN:
-		return "yaml_VERSION_DIRECTIVE_TOKEN"
-	case yaml_TAG_DIRECTIVE_TOKEN:
-		return "yaml_TAG_DIRECTIVE_TOKEN"
-	case yaml_DOCUMENT_START_TOKEN:
-		return "yaml_DOCUMENT_START_TOKEN"
-	case yaml_DOCUMENT_END_TOKEN:
-		return "yaml_DOCUMENT_END_TOKEN"
-	case yaml_BLOCK_SEQUENCE_START_TOKEN:
-		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
-	case yaml_BLOCK_MAPPING_START_TOKEN:
-		return "yaml_BLOCK_MAPPING_START_TOKEN"
-	case yaml_BLOCK_END_TOKEN:
-		return "yaml_BLOCK_END_TOKEN"
-	case yaml_FLOW_SEQUENCE_START_TOKEN:
-		return "yaml_FLOW_SEQUENCE_START_TOKEN"
-	case yaml_FLOW_SEQUENCE_END_TOKEN:
-		return "yaml_FLOW_SEQUENCE_END_TOKEN"
-	case yaml_FLOW_MAPPING_START_TOKEN:
-		return "yaml_FLOW_MAPPING_START_TOKEN"
-	case yaml_FLOW_MAPPING_END_TOKEN:
-		return "yaml_FLOW_MAPPING_END_TOKEN"
-	case yaml_BLOCK_ENTRY_TOKEN:
-		return "yaml_BLOCK_ENTRY_TOKEN"
-	case yaml_FLOW_ENTRY_TOKEN:
-		return "yaml_FLOW_ENTRY_TOKEN"
-	case yaml_KEY_TOKEN:
-		return "yaml_KEY_TOKEN"
-	case yaml_VALUE_TOKEN:
-		return "yaml_VALUE_TOKEN"
-	case yaml_ALIAS_TOKEN:
-		return "yaml_ALIAS_TOKEN"
-	case yaml_ANCHOR_TOKEN:
-		return "yaml_ANCHOR_TOKEN"
-	case yaml_TAG_TOKEN:
-		return "yaml_TAG_TOKEN"
-	case yaml_SCALAR_TOKEN:
-		return "yaml_SCALAR_TOKEN"
-	}
-	return "<unknown token>"
-}
-
-// The token structure.
-type yaml_token_t struct {
-	// The token type.
-	typ yaml_token_type_t
-
-	// The start/end of the token.
-	start_mark, end_mark yaml_mark_t
-
-	// The stream encoding (for yaml_STREAM_START_TOKEN).
-	encoding yaml_encoding_t
-
-	// The alias/anchor/scalar value or tag/tag directive handle
-	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
-	value []byte
-
-	// The tag suffix (for yaml_TAG_TOKEN).
-	suffix []byte
-
-	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
-	prefix []byte
-
-	// The scalar style (for yaml_SCALAR_TOKEN).
-	style yaml_scalar_style_t
-
-	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
-	major, minor int8
-}
-
-// Events
-
-type yaml_event_type_t int8
-
-// Event types.
-const (
-	// An empty event.
-	yaml_NO_EVENT yaml_event_type_t = iota
-
-	yaml_STREAM_START_EVENT   // A STREAM-START event.
-	yaml_STREAM_END_EVENT     // A STREAM-END event.
-	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
-	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
-	yaml_ALIAS_EVENT          // An ALIAS event.
-	yaml_SCALAR_EVENT         // A SCALAR event.
-	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
-	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
-	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
-	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
-)
-
-var eventStrings = []string{
-	yaml_NO_EVENT:             "none",
-	yaml_STREAM_START_EVENT:   "stream start",
-	yaml_STREAM_END_EVENT:     "stream end",
-	yaml_DOCUMENT_START_EVENT: "document start",
-	yaml_DOCUMENT_END_EVENT:   "document end",
-	yaml_ALIAS_EVENT:          "alias",
-	yaml_SCALAR_EVENT:         "scalar",
-	yaml_SEQUENCE_START_EVENT: "sequence start",
-	yaml_SEQUENCE_END_EVENT:   "sequence end",
-	yaml_MAPPING_START_EVENT:  "mapping start",
-	yaml_MAPPING_END_EVENT:    "mapping end",
-}
-
-func (e yaml_event_type_t) String() string {
-	if e < 0 || int(e) >= len(eventStrings) {
-		return fmt.Sprintf("unknown event %d", e)
-	}
-	return eventStrings[e]
-}
-
-// The event structure.
-type yaml_event_t struct {
-
-	// The event type.
-	typ yaml_event_type_t
-
-	// The start and end of the event.
-	start_mark, end_mark yaml_mark_t
-
-	// The document encoding (for yaml_STREAM_START_EVENT).
-	encoding yaml_encoding_t
-
-	// The version directive (for yaml_DOCUMENT_START_EVENT).
-	version_directive *yaml_version_directive_t
-
-	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
-	tag_directives []yaml_tag_directive_t
-
-	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
-	anchor []byte
-
-	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
-	tag []byte
-
-	// The scalar value (for yaml_SCALAR_EVENT).
-	value []byte
-
-	// Is the document start/end indicator implicit, or the tag optional?
-	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
-	implicit bool
-
-	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
-	quoted_implicit bool
-
-	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
-	style yaml_style_t
-}
-
-func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
-func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
-func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
-
-// Nodes
-
-const (
-	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
-	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
-	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
-	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
-	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
-	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
-
-	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
-	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
-
-	// Not in original libyaml.
-	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
-	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
-
-	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
-	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
-	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
-)
-
-type yaml_node_type_t int
-
-// Node types.
-const (
-	// An empty node.
-	yaml_NO_NODE yaml_node_type_t = iota
-
-	yaml_SCALAR_NODE   // A scalar node.
-	yaml_SEQUENCE_NODE // A sequence node.
-	yaml_MAPPING_NODE  // A mapping node.
-)
-
-// An element of a sequence node.
-type yaml_node_item_t int
-
-// An element of a mapping node.
-type yaml_node_pair_t struct {
-	key   int // The key of the element.
-	value int // The value of the element.
-}
-
-// The node structure.
-type yaml_node_t struct {
-	typ yaml_node_type_t // The node type.
-	tag []byte           // The node tag.
-
-	// The node data.
-
-	// The scalar parameters (for yaml_SCALAR_NODE).
-	scalar struct {
-		value  []byte              // The scalar value.
-		length int                 // The length of the scalar value.
-		style  yaml_scalar_style_t // The scalar style.
-	}
-
-	// The sequence parameters (for YAML_SEQUENCE_NODE).
-	sequence struct {
-		items_data []yaml_node_item_t    // The stack of sequence items.
-		style      yaml_sequence_style_t // The sequence style.
-	}
-
-	// The mapping parameters (for yaml_MAPPING_NODE).
-	mapping struct {
-		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
-		pairs_start *yaml_node_pair_t    // The beginning of the stack.
-		pairs_end   *yaml_node_pair_t    // The end of the stack.
-		pairs_top   *yaml_node_pair_t    // The top of the stack.
-		style       yaml_mapping_style_t // The mapping style.
-	}
-
-	start_mark yaml_mark_t // The beginning of the node.
-	end_mark   yaml_mark_t // The end of the node.
-
-}
-
-// The document structure.
-type yaml_document_t struct {
-
-	// The document nodes.
-	nodes []yaml_node_t
-
-	// The version directive.
-	version_directive *yaml_version_directive_t
-
-	// The list of tag directives.
-	tag_directives_data  []yaml_tag_directive_t
-	tag_directives_start int // The beginning of the tag directives list.
-	tag_directives_end   int // The end of the tag directives list.
-
-	start_implicit int // Is the document start indicator implicit?
-	end_implicit   int // Is the document end indicator implicit?
-
-	// The start/end of the document.
-	start_mark, end_mark yaml_mark_t
-}
-
-// The prototype of a read handler.
-//
-// The read handler is called when the parser needs to read more bytes from the
-// source. The handler should write not more than size bytes to the buffer.
-// The number of written bytes should be set to the size_read variable.
-//
-// [in,out]   data        A pointer to an application data specified by
-//                        yaml_parser_set_input().
-// [out]      buffer      The buffer to write the data from the source.
-// [in]       size        The size of the buffer.
-// [out]      size_read   The actual number of bytes read from the source.
-//
-// On success, the handler should return 1.  If the handler failed,
-// the returned value should be 0. On EOF, the handler should set the
-// size_read to 0 and return 1.
-type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
-
-// This structure holds information about a potential simple key.
-type yaml_simple_key_t struct {
-	possible     bool        // Is a simple key possible?
-	required     bool        // Is a simple key required?
-	token_number int         // The number of the token.
-	mark         yaml_mark_t // The position mark.
-}
-
-// The states of the parser.
-type yaml_parser_state_t int
-
-const (
-	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
-
-	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
-	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
-	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
-	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
-	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
-	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
-	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
-	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
-	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
-	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
-	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
-	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
-	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
-	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
-	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
-	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
-	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
-	yaml_PARSE_END_STATE                               // Expect nothing.
-)
-
-func (ps yaml_parser_state_t) String() string {
-	switch ps {
-	case yaml_PARSE_STREAM_START_STATE:
-		return "yaml_PARSE_STREAM_START_STATE"
-	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
-		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
-	case yaml_PARSE_DOCUMENT_START_STATE:
-		return "yaml_PARSE_DOCUMENT_START_STATE"
-	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
-		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
-	case yaml_PARSE_DOCUMENT_END_STATE:
-		return "yaml_PARSE_DOCUMENT_END_STATE"
-	case yaml_PARSE_BLOCK_NODE_STATE:
-		return "yaml_PARSE_BLOCK_NODE_STATE"
-	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
-		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
-	case yaml_PARSE_FLOW_NODE_STATE:
-		return "yaml_PARSE_FLOW_NODE_STATE"
-	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
-		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
-	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
-	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
-		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
-	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
-	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
-	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
-	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
-		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
-	case yaml_PARSE_END_STATE:
-		return "yaml_PARSE_END_STATE"
-	}
-	return "<unknown parser state>"
-}
-
-// This structure holds aliases data.
-type yaml_alias_data_t struct {
-	anchor []byte      // The anchor.
-	index  int         // The node id.
-	mark   yaml_mark_t // The anchor mark.
-}
-
-// The parser structure.
-//
-// All members are internal. Manage the structure using the
-// yaml_parser_ family of functions.
-type yaml_parser_t struct {
-
-	// Error handling
-
-	error yaml_error_type_t // Error type.
-
-	problem string // Error description.
-
-	// The byte about which the problem occurred.
-	problem_offset int
-	problem_value  int
-	problem_mark   yaml_mark_t
-
-	// The error context.
-	context      string
-	context_mark yaml_mark_t
-
-	// Reader stuff
-
-	read_handler yaml_read_handler_t // Read handler.
-
-	input_reader io.Reader // File input data.
-	input        []byte    // String input data.
-	input_pos    int
-
-	eof bool // EOF flag
-
-	buffer     []byte // The working buffer.
-	buffer_pos int    // The current position of the buffer.
-
-	unread int // The number of unread characters in the buffer.
-
-	raw_buffer     []byte // The raw buffer.
-	raw_buffer_pos int    // The current position of the buffer.
-
-	encoding yaml_encoding_t // The input encoding.
-
-	offset int         // The offset of the current position (in bytes).
-	mark   yaml_mark_t // The mark of the current position.
-
-	// Scanner stuff
-
-	stream_start_produced bool // Have we started to scan the input stream?
-	stream_end_produced   bool // Have we reached the end of the input stream?
-
-	flow_level int // The number of unclosed '[' and '{' indicators.
-
-	tokens          []yaml_token_t // The tokens queue.
-	tokens_head     int            // The head of the tokens queue.
-	tokens_parsed   int            // The number of tokens fetched from the queue.
-	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
-
-	indent  int   // The current indentation level.
-	indents []int // The indentation levels stack.
-
-	simple_key_allowed bool                // May a simple key occur at the current position?
-	simple_keys        []yaml_simple_key_t // The stack of simple keys.
-
-	// Parser stuff
-
-	state          yaml_parser_state_t    // The current parser state.
-	states         []yaml_parser_state_t  // The parser states stack.
-	marks          []yaml_mark_t          // The stack of marks.
-	tag_directives []yaml_tag_directive_t // The list of TAG directives.
-
-	// Dumper stuff
-
-	aliases []yaml_alias_data_t // The alias data.
-
-	document *yaml_document_t // The currently parsed document.
-}
-
-// Emitter Definitions
-
-// The prototype of a write handler.
-//
-// The write handler is called when the emitter needs to flush the accumulated
-// characters to the output.  The handler should write @a size bytes of the
-// @a buffer to the output.
-//
-// @param[in,out]   data        A pointer to an application data specified by
-//                              yaml_emitter_set_output().
-// @param[in]       buffer      The buffer with bytes to be written.
-// @param[in]       size        The size of the buffer.
-//
-// @returns On success, the handler should return @c 1.  If the handler failed,
-// the returned value should be @c 0.
-//
-type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
-
-type yaml_emitter_state_t int
-
-// The emitter states.
-const (
-	// Expect STREAM-START.
-	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
-
-	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
-	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
-	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
-	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
-	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
-	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
-	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
-	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
-	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
-	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
-	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
-	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
-	yaml_EMIT_END_STATE                        // Expect nothing.
-)
-
-// The emitter structure.
-//
-// All members are internal.  Manage the structure using the @c yaml_emitter_
-// family of functions.
-type yaml_emitter_t struct {
-
-	// Error handling
-
-	error   yaml_error_type_t // Error type.
-	problem string            // Error description.
-
-	// Writer stuff
-
-	write_handler yaml_write_handler_t // Write handler.
-
-	output_buffer *[]byte   // String output data.
-	output_writer io.Writer // File output data.
-
-	buffer     []byte // The working buffer.
-	buffer_pos int    // The current position of the buffer.
-
-	raw_buffer     []byte // The raw buffer.
-	raw_buffer_pos int    // The current position of the buffer.
-
-	encoding yaml_encoding_t // The stream encoding.
-
-	// Emitter stuff
-
-	canonical   bool         // If the output is in the canonical style?
-	best_indent int          // The number of indentation spaces.
-	best_width  int          // The preferred width of the output lines.
-	unicode     bool         // Allow unescaped non-ASCII characters?
-	line_break  yaml_break_t // The preferred line break.
-
-	state  yaml_emitter_state_t   // The current emitter state.
-	states []yaml_emitter_state_t // The stack of states.
-
-	events      []yaml_event_t // The event queue.
-	events_head int            // The head of the event queue.
-
-	indents []int // The stack of indentation levels.
-
-	tag_directives []yaml_tag_directive_t // The list of tag directives.
-
-	indent int // The current indentation level.
-
-	flow_level int // The current flow level.
-
-	root_context       bool // Is it the document root context?
-	sequence_context   bool // Is it a sequence context?
-	mapping_context    bool // Is it a mapping context?
-	simple_key_context bool // Is it a simple mapping key context?
-
-	line       int  // The current line.
-	column     int  // The current column.
-	whitespace bool // If the last character was a whitespace?
-	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
-	open_ended bool // If an explicit document end is required?
-
-	// Anchor analysis.
-	anchor_data struct {
-		anchor []byte // The anchor value.
-		alias  bool   // Is it an alias?
-	}
-
-	// Tag analysis.
-	tag_data struct {
-		handle []byte // The tag handle.
-		suffix []byte // The tag suffix.
-	}
-
-	// Scalar analysis.
-	scalar_data struct {
-		value                 []byte              // The scalar value.
-		multiline             bool                // Does the scalar contain line breaks?
-		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
-		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
-		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
-		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
-		style                 yaml_scalar_style_t // The output style.
-	}
-
-	// Dumper stuff
-
-	opened bool // If the stream was already opened?
-	closed bool // If the stream was already closed?
-
-	// The information associated with the document nodes.
-	anchors *struct {
-		references int  // The number of references.
-		anchor     int  // The anchor id.
-		serialized bool // If the node has been emitted?
-	}
-
-	last_anchor_id int // The last assigned anchor id.
-
-	document *yaml_document_t // The currently emitted document.
-}
diff --git a/vendor/gopkg.in/yaml.v2/yamlprivateh.go b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
deleted file mode 100644
index 8110ce3..0000000
--- a/vendor/gopkg.in/yaml.v2/yamlprivateh.go
+++ /dev/null
@@ -1,173 +0,0 @@
-package yaml
-
-const (
-	// The size of the input raw buffer.
-	input_raw_buffer_size = 512
-
-	// The size of the input buffer.
-	// It should be possible to decode the whole raw buffer.
-	input_buffer_size = input_raw_buffer_size * 3
-
-	// The size of the output buffer.
-	output_buffer_size = 128
-
-	// The size of the output raw buffer.
-	// It should be possible to encode the whole output buffer.
-	output_raw_buffer_size = (output_buffer_size*2 + 2)
-
-	// The size of other stacks and queues.
-	initial_stack_size  = 16
-	initial_queue_size  = 16
-	initial_string_size = 16
-)
-
-// Check if the character at the specified position is an alphabetical
-// character, a digit, '_', or '-'.
-func is_alpha(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
-}
-
-// Check if the character at the specified position is a digit.
-func is_digit(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9'
-}
-
-// Get the value of a digit.
-func as_digit(b []byte, i int) int {
-	return int(b[i]) - '0'
-}
-
-// Check if the character at the specified position is a hex-digit.
-func is_hex(b []byte, i int) bool {
-	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
-}
-
-// Get the value of a hex-digit.
-func as_hex(b []byte, i int) int {
-	bi := b[i]
-	if bi >= 'A' && bi <= 'F' {
-		return int(bi) - 'A' + 10
-	}
-	if bi >= 'a' && bi <= 'f' {
-		return int(bi) - 'a' + 10
-	}
-	return int(bi) - '0'
-}
-
-// Check if the character is ASCII.
-func is_ascii(b []byte, i int) bool {
-	return b[i] <= 0x7F
-}
-
-// Check if the character at the start of the buffer can be printed unescaped.
-func is_printable(b []byte, i int) bool {
-	return ((b[i] == 0x0A) || // . == #x0A
-		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
-		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
-		(b[i] > 0xC2 && b[i] < 0xED) ||
-		(b[i] == 0xED && b[i+1] < 0xA0) ||
-		(b[i] == 0xEE) ||
-		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
-			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
-			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
-}
-
-// Check if the character at the specified position is NUL.
-func is_z(b []byte, i int) bool {
-	return b[i] == 0x00
-}
-
-// Check if the beginning of the buffer is a BOM.
-func is_bom(b []byte, i int) bool {
-	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
-}
-
-// Check if the character at the specified position is space.
-func is_space(b []byte, i int) bool {
-	return b[i] == ' '
-}
-
-// Check if the character at the specified position is tab.
-func is_tab(b []byte, i int) bool {
-	return b[i] == '\t'
-}
-
-// Check if the character at the specified position is blank (space or tab).
-func is_blank(b []byte, i int) bool {
-	//return is_space(b, i) || is_tab(b, i)
-	return b[i] == ' ' || b[i] == '\t'
-}
-
-// Check if the character at the specified position is a line break.
-func is_break(b []byte, i int) bool {
-	return (b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
-}
-
-func is_crlf(b []byte, i int) bool {
-	return b[i] == '\r' && b[i+1] == '\n'
-}
-
-// Check if the character is a line break or NUL.
-func is_breakz(b []byte, i int) bool {
-	//return is_break(b, i) || is_z(b, i)
-	return (        // is_break:
-	b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		// is_z:
-		b[i] == 0)
-}
-
-// Check if the character is a line break, space, or NUL.
-func is_spacez(b []byte, i int) bool {
-	//return is_space(b, i) || is_breakz(b, i)
-	return ( // is_space:
-	b[i] == ' ' ||
-		// is_breakz:
-		b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		b[i] == 0)
-}
-
-// Check if the character is a line break, space, tab, or NUL.
-func is_blankz(b []byte, i int) bool {
-	//return is_blank(b, i) || is_breakz(b, i)
-	return ( // is_blank:
-	b[i] == ' ' || b[i] == '\t' ||
-		// is_breakz:
-		b[i] == '\r' || // CR (#xD)
-		b[i] == '\n' || // LF (#xA)
-		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
-		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
-		b[i] == 0)
-}
-
-// Determine the width of the character.
-func width(b byte) int {
-	// Don't replace these by a switch without first
-	// confirming that it is being inlined.
-	if b&0x80 == 0x00 {
-		return 1
-	}
-	if b&0xE0 == 0xC0 {
-		return 2
-	}
-	if b&0xF0 == 0xE0 {
-		return 3
-	}
-	if b&0xF8 == 0xF0 {
-		return 4
-	}
-	return 0
-
-}