Merge pull request #1 from khaledhosny/master

Update Arabic translation
Added Changelog for Arabic translation update by Khaled Hosny
Improved method naming. Clean up Google references.
Make item state fetching work in InoReader.
New branch for new unstable line.
Enable inoreader support
Changelog for InoReader and Reedah
Fixes naming.
Remove unused actionQueue member.
Normalizing handling of all online source update() callbacks.
Normalize online source auto_update() method.
Consolidating child subscription type setting from the different node source implementations into the node source interface.
Adding new nodeSourceType field for the type of the subscriptions it implements.
Fix header name
Remove assertion again as it is not good for dummy_source.c
Removing useless wrappers for opml_source method calls.
Better naming gsource -> source
Defining TinyTinyRSS API calls for subscribing and removing feeds.
Do use localized source name when setting node title. Prepared remove request for TinyTinyRSS (does not work yet though).
Improved source descriptions.