FeedReader 1.4 beta

Written for FeedReader by JeanLuc on 2015-10-08

As usual: test, report bugs and have fun ;)

- ownCloud News support
- sync more responsive
- app fully operational during initial sync
- overlay to indicate new articles
- dynamic switch between GMenu in gnome and menu-button elsewhere
- notifications are updated rather than creating new ones every time
- respect notification settings of the DE
- better font-styling on non-elementary distributions
- proper fullscreen mode for videos
- support multiple share accounts of the same kind (e.g. two different pocket accounts)