Garbled email addresses in conversation view: Closes bgo#713060

Technically broken (unencoded dot!) "From:" addresses like
=?utf-8?Q?WestLicht.=20Schauplatz=20f=C3=BCr=20Fotografie?= <info@westlicht.com>
were not decoded in Geary's conversation viewer.

Other clients like Gmail and Thunderbird handle the
brokenness, and we should too.

This also closes bgo#714339, "subject contains garbled UTF-8
characters".

https://bugzilla.gnome.org/show_bug.cgi?id=713060
https://bugzilla.gnome.org/show_bug.cgi?id=714339

THANKS

@@ -38,6 +38,7 @@ Michel Alexandre Salim <salimma@fedoraproject.org>
 Anirudh Sanjeev <skyronic@gmail.com>
 Jakub Steiner <jimmac@gmail.com>
 Wolfgang Steitz <wolfer7@web.de>
+Jakob Unterwurzacher <jakobunt@gmail.com>
 Colin Walters <walters@verbum.org>
 Alexander Wilms <alexander.wilms@zoho.com>
 

src/engine/rfc822/rfc822.vala

@@ -12,7 +12,7 @@ internal void init() {
     if (init_count++ != 0)
         return;
     
-    GMime.init(0);
+    GMime.init(GMime.ENABLE_RFC2047_WORKAROUNDS);
 }
 
 }