Merge branch 'offline'

* offline:
  Adding image url extraction to the API for all stories.
  Adding a bit of skeleton for offline feeds.
  Moving notifier to correct position for both feed list and feed detail. Also responds perfectly to orientations, even on different views.
Fixing a few bugs in image url extraction.
Fixing a few bugs in image url extraction.
Fixing signle story mode.
Fixing loading of feed pages for hiddne story titles and hidden stories.
Fixing List view by not having it involved in the Feed view's details.
Full offline. Adding feeds table and caching of feed list by username. Also optimizing unread story fetching by placing all db calls in a background thread.