all: Remove theme install code

https://bugzilla.gnome.org/show_bug.cgi?id=672604
debug: Remove property editor

Just use the gtk+ inspector.
appdata: Add appdata skeleton

https://bugzilla.gnome.org/show_bug.cgi?id=729724
packagekit: Remove catalogue

Package catalogue support has apparently been removed from packagekit 3.12.

https://bugzilla.gnome.org/show_bug.cgi?id=672604
build: Remove catalogue from config files too
Updated Greek translation
[l10n] Updated Catalan translation
[l10n] Updated Catalan (Valencian) translation
appdata: Add description to the AppData file
appdata: Remove bad number
Version 3.13.90
Post release version bump
svg: Allow big SVG card themes to load
Updated Spanish translation
Correct the appdata file name

Rename it to sol.appdata.xml to match the desktop file name; the tooling
around appdata files expects the names to match.
Updated Czech translation
Updated Norwegian bokmål translation.
Updated Traditional Chinese translation(Hong Kong and Taiwan)
Updated French translation
Updated Ukrainian translation