* mu4e/org-mu4e.el (org-mu4e-store-link): Add capture template keywords

For other email links (e.g., wl, mh, gnus), a number of keywords are
defined in org capture templates.  This makes these keywords available
for use in captures from mu4e.

http://orgmode.org/manual/Template-expansion.html

Inspiration from Roelof Burger
https://groups.google.com/d/msg/mu-discuss/4sffZofVKAY/aVTdVYoVyiUJ
Fix typo
Updated html export to org v8 standards

Replaced use of org-export-string with org-export-string-as to match
updated org coding standards.

This specifically addresses issue #391
Merge pull request #476 from zakkak/patch-1

Fix typo
Fix gpg decryption (#186)

After a multipart/encrypted part gets decrypted the result is usually a
`multipart/mixed` part (see enigmail).

Before this commit mime multiparts where handled only by
`g_mime_message_foreach`.  As a result the decrypted mime multiparts
where not processed.

This patch handles mime multiparts explicitly by removing the
`g_mime_message_foreach` invocations.  This might come at the cost of
reduced maintainability, in the case of radical gmime changes.  However,
gmime is pretty stable and that scenario is highly unlikely.

TODO: After decryption make any attachments available
Fix #186 part 2

This patch fixes the attachment listing when using `mu`.  For some
reason the '--decrypt' option among others where totally ignored when
listing the attachments.
Fix #186 Part 3

This patch fixes the attachment extraction (open, save, temp) when using
`mu4e`.  `mu4e` used to not notify the mu-server about the
mu4e-decryption-policy.  As a result mu-server did not decrypt the
attachments for extract, open, or temp.
mu-cmd-server: fix compilating warning (BSD_SOURCE)

Fedora-21's gcc started complaining about this
mu-threader: debugging for some reported problem in find_or_create
mu-msg-crypto: give better error when gpg is not found

also fixes some other warnings
mu.1: mention --nocolor. Fixes #485
mu4e: add note about completing-read / helm to the FAQ (#286)
split off `org-old-mu4e.el' for backward compatibility

For now this is just a copy of org-mu4e.el (which requires org-mode
8.x), but the expectancy is that they will diverge.
Merge pull request #480 from jonEbird/master

mu4e: updated html export to org v8 standards
mu4e: Mention need for multiple account SMTP credentials in manual.
Merge pull request #486 from holocronweaver/master

mu4e: Mention need for multiple account SMTP credentials in manual.
Merge pull request #365 from jschwab/add-capture-template-keywords

* mu4e/org-mu4e.el (org-mu4e-store-link): Add capture template keywords
mu4e: unbreak sending mail when gnus-agents is unplugged in gnus (#462)