bgmusic volume raised
Merge remote-tracking branch 'origin/master'

Conflicts:
	Tetris/bin/Release/Tetris.exe
	Tetris/bin/Release/Tetris.pdb
	Tetris/obj/Release/Tetris.csproj.GenerateResource.Cache
	Tetris/obj/Release/Tetris.exe
	Tetris/obj/Release/Tetris.pdb
	Tetris/obj/Release/Tetris_MarkupCompile.i.lref