Fix for IE autoplay/controls

IE is non-standard regarding the autoplay property. IE uses
autoplay="autoplay"
http://msdn.microsoft.com/en-us/library/ie/ff974744(v=vs.85).aspx
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser into upstream-master
Merge pull request #822 from timhobbs/upstream-master

Fix for IE autoplay/controls