The functionality was broken since the decoding changes.
This commit also simplifies the code (in my view) to make the application logic
easier to follow.
The docs are updated accordingly (the feature was poorly documented).

As far as I am aware there should be no breaking changes (and is certainly
still in the spec of the prior documentation)

Previously the workers returned a mixture of decoded / encoded parts.
This lead to a whole bunch of issues.
This commit changes the msgviewer and the commands to assume parts to already
be decoded

Hi!
This patch will fix missing filename if it is RFC2231 encoded with charset
different then ASCII or UTF8. Example how it looks like in mail:

Content-Type: application/pdf;
 name="=?UTF-8?Q?Opis_przedmiotu_zam=c3=b3wienia_-_za=c5=82=c4=85cznik_nr_1?=
 =?UTF-8?Q?=2epdf?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename*0*=iso-8859-2''%4F%70%69%73%20%70%72%7A%65%64%6D%69%6F%74%75%20;
 filename*1*=%7A%61%6D%F3%77%69%65%6E%69%61%20%2D%20%7A%61%B3%B1%63%7A%6E;
 filename*2*=%69%6B%20%6E%72%20%31%2E%70%64%66

Yes, this should be forbidden :-). Anyway, best solotion in such cases
is to failback to Content-Type name. I am not sure if it is guaranted to
be there, but probably it will.

Leszek

A pager is spawned every time an email is viewed but not killed off when
quitting the msgviewer, thus leading to process leakage. This patch
fixes this by adding a Close method to the msgview widget, which is
called in the close command.

Signed-off-by: Kevin Kuehler <keur@xcf.berkeley.edu>

This patch ensures the following commands join their arguments with
spaces to make it easier to interact with:

- cf
- mkdir
- cd
- attach
- detach
- ct
- copy
- move
- save

Signed-off-by: Wagner Riffel <wgrriffel@gmail.com>

Signed-off-by: Wagner Riffel <wgrriffel@gmail.com>

Signed-off-by: Wagner Riffel <wgrriffel@gmail.com>

This reverts commit f0a0c5aa733fa66958c113465bfc5fdd3d7cc9f0.