 Version 6.16.0

* fixed youtube channel selector dialog not showing up in OnlineFeed fragment
* removed RemoteMedia type
* when playing youtube video, select video-only stream to mix with audio stream
* enhanced casting in the Play app
	* video player casts video, audio player casts audio, force-video casts video
	* casting youtube video uses the full videostream and the quality is not as customizable as playing locally
