Add gesture detector for single tap to enter/exit immersive mode in ReadingItemFragment
Fix entering/leaving immersive view as you page through fragments
Merge remote-tracking branch 'upstream/master' into immersive
Leave immersive mode when the reading activity loses focus. Always check system ui visibility when switching in/out if immersive mode.
Add touch listener for immersive view gesture to fragment view in addition to webview.
Add check for Kit Kat when setting system UI visibility on focus change.
Add button on action bar to enter full screen mode
Merge remote-tracking branch 'upstream/master' into immersive
Add fullscreen icon
Merge pull request #503 from manderson23/immersive

Android: Full screen reading on 4.4