Redid Up button logic
2.0 beta 6
Changed to custom fork of CastCompanionLibrary, other Cast changes

Fixed Cast bars not always showing on tablets.
Added shadow to Cast bars.
Added version number and Cast options to About screen.
Added horizontal layout for About screen.
Fixed more Cast crashes.
Hid "Add transfers" menu option for Amazon Fire TV
Merge branch 'master' into android-L
Remove old list selector