* CB-13384: (browser) Added deprecation of video.src compatibility
* CB-13384: Updated to reflect property detection rather than deprecation exception.
Remove audio flag from getUserMedia on the browser. Including audio resulted in some nasty audio feedback, and audio isn't really needed for taking pictures anyway.
The MediaStream.stop() method has been deprecated as of Chrome 47. We were using it, and it was generating an exception.
If stop() method is not found, instead stop each individual track (the new way of doing it).