Added fix for private videos throwing js error.

Checking against app:control which is only present if a video is unavailable, restricted, or otherwise failed to upload. Bumping version to 2.1.1.
Merge pull request #4 from jamesfleeting/master

Fix for private videos throwing js errors. Bumped version to 2.1.1. Tested with jQuery 1.9 and 2.0.