Got rid of all of StreamingAudio sample.
Using newer, far simpler APIs instead. Something in the cleanup of the StreamingAudio sample app buffers was causing crashes. I got them down, but never got rid of them... until now, i hope.


* DetailViewController.cs: Got rid of the PlayerViewController from
  the StreamingAudio sample app. Integrated into here.

* LockScreenAudio.csproj: Got rid of PlayerViewController

* MasterViewController.cs: UIBarbuttonItem Performs segue as well. Set
  up Song to pass in to DetailViewCOntroller for streaming audio. 

* MyMusicPlayer.cs: Added methods to play streaming song.
Also found source of some issues.
I forgot I was using clear internally, so things were getting deleted
  prematurely. Method is now called cleanup. 

* Song.cs: Added streamingURL property.