Add mute button to test player.
Upgrade visual studio 2012 and add x86 mode
Merge branch 'master' of https://github.com/majorsilence/MPlayerControl

Conflicts:
	LibMPlayerWinform/LibMPlayerWinform.csproj
	MediaPlayer/Player.Designer.cs
	MediaPlayer/Player.cs
Add mute button again after conflicted merge removed it.