3.0.0

BREAKING CHANGES:

• Removed support for passing in multiple videos to play one after another
• Renamed alpha to darkness
• Removed non-throwing play(). Use the throwing play() instead.

Features:

• Added a singleton called shared. Now users don't need to retain an instance of VideoBackground to play a video.
  • Users can still create new instances if needed, i.e. if needed to play multiple videos simultaneously.
• Add support for playing video from a local or remote URL
• Add APIs for pause, restart, resume, darkness, isMuted, & willLoopVideo
• Make playerLayer public to allow advanced control and customization
• Add setAudioSessionAmbient to play. Set to true by default.

Fixes:

• Add clean up code to play(), so multiple calls to it should work smoothly