Many bug fixes and changes, please see the changelist fro 1.4 -> 1.5
Fixing an issue where VideoCastControllerActivity would show loading progressbar
If user started castinga video but lock the screen before playback started and
after playback started unlock the device, the loading progressbar was staying on the
screen.
Fixing issue #58
Merge branch 'master' of https://github.com/googlecast/CastCompanionLibrary-android

# By anaddaf (2) and Ali Naddaf (1)
# Via anaddaf
* 'master' of https://github.com/googlecast/CastCompanionLibrary-android:
  Fixing issue #58
  Fixing an issue where VideoCastControllerActivity would show loading progressbar If user started castinga video but lock the screen before playback started and after playback started unlock the device, the loading progressbar was staying on the screen.
  Many bug fixes and changes, please see the changelist fro 1.4 -> 1.5