Curl and libcurl 7.50.0

 Public curl releases:         156
 Command line options:         185
 curl_easy_setopt() options:   224
 Public functions in libcurl:  61
 Contributors:                 1404

This release includes the following changes:

 o http: add CURLINFO_HTTP_VERSION and %{http_version} [3]

This release includes the following bugfixes:

 o memdebug: fix MSVC crash with -DMEMDEBUG_LOG_SYNC [1]
 o openssl: fix build with OPENSSL_NO_COMP [2]
 o mbedtls: removed unused variables [4]
 o cmake: Added missing mbedTLS support [5]
 o URL parser: allow URLs to use one, two or three slashes [6]
 o curl: fix -q [regression] [7]
 o openssl: Use correct buffer sizes for error messages [8]
 o curl: fix SIGSEGV while parsing URL with too many globs [9]
 o schannel: add CURLOPT_CERTINFO support [10]
 o vtls: fix ssl session cache race condition [11]
 o http: Fix HTTP/2 connection reuse [regression] [12]
 o checksrc: Add LoadLibrary to the banned functions list
 o schannel: Disable ALPN on Windows < 8.1 [13]
 o configure: occasional ignorance of --enable-symbol-hiding with GCC
 o http2: test17xx are the first real HTTP/2 tests
 o resolve: add support for IPv6 DNS64/NAT64 Networks on OS X + iOS [14]
 o curl_multi_socket_action.3: rewording [15]
 o CURLOPT_POSTFIELDS.3: Clarify what happens when set empty [16]
 o cmake: Fix build with winldap [17]
 o openssl: fix cert check with non-DNS name fields present [18]
 o curl.1: mention the units for the progress meter [20]
 o openssl: use more 'const' to fix build warnings with 1.1.0 branch
 o cmake: now using BUILD_TESTING=ON/OFF [19]
 o vtls: Only call add/getsession if session id is enabled
 o headers: forward declare CURL, CURLM and CURLSH as structs [21]
 o configure: improve detection of CA bundle path on FreeBSD [22]

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (https://curl.haxx.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Andrew Kurushin, Andrew Robbins, Askar Safin, Benjamin Kircher, Brad King,
  Dan Fandrich, Daniel Seither, Daniel Stenberg, Fabian Ruff, Frank Gevaerts,
  Gisle Vanem, Ivan Avdeev, Joel Depooter, Kamil Dudka, Luo Jinghua,
  Marcel Raad, Michael Kaufmann, Michael Osipov, Michael Wallner,
  Patrick Monnerat, Ray Satiro, Reinhard Max, Renaud Lehoux, Romain Coltel,
  Sergei Nikulov, Steve Holme, vanillajonathan on github, Viktor Szakáts,
  (28 contributors)

        Thanks! (and sorry if I forgot to mention someone)

References to bug reports and discussions on issues:

 [1] = https://curl.haxx.se/bug/?i=828
 [2] = https://curl.haxx.se/bug/?i=836
 [3] = https://curl.haxx.se/bug/?i=799
 [4] = https://curl.haxx.se/bug/?i=838
 [5] = https://curl.haxx.se/bug/?i=837
 [6] = https://curl.haxx.se/bug/?i=791
 [7] = https://curl.haxx.se/bug/?i=842
 [8] = https://curl.haxx.se/bug/?i=844
 [9] = https://bugzilla.redhat.com/1340757
 [10] = https://curl.haxx.se/bug/?i=822
 [11] = https://curl.haxx.se/bug/?i=815
 [12] = https://curl.haxx.se/bug/?i=855
 [13] = https://curl.haxx.se/bug/?i=840
 [14] = https://curl.haxx.se/bug/?i=863
 [15] = https://curl.haxx.se/bug/?i=865
 [16] = https://curl.haxx.se/bug/?i=862
 [17] = https://curl.haxx.se/bug/?i=874
 [18] = https://curl.haxx.se/bug/?i=875
 [19] = https://curl.haxx.se/bug/?i=882
 [20] = https://curl.haxx.se/bug/?i=883
 [21] = https://curl.haxx.se/mail/lib-2016-06/0100.html
 [22] = https://curl.haxx.se/bug/?i=894