Merge pull request #1 from jhthorp/master

Modified WinControlWP8 to close the Media Element when the Video has stopped playing.
Fixed WinControls DLL
Merge branch 'master' of github.com:felixrieseberg/Unity-WinRT-WP8-PlayMovieNatively

# By Felix Rieseberg
# Via Felix Rieseberg
* 'master' of github.com:felixrieseberg/Unity-WinRT-WP8-PlayMovieNatively:
  Fixed WinControls DLL