When escaping a cutscene, stop its soundtrack as well. (I can't check if this

is a problem in 0.9.0 as well, but surely not...?)

svn-id: r24047

engines/agos/animation.cpp

@@ -263,6 +263,7 @@ void MoviePlayer::handleNextFrame() {
 
 	if (_leftButtonDown && _rightButtonDown && !_vm->getBitFlag(41)) {
 		_frameNum = _framesCount;
+		_mixer->stopHandle(_bgSound);
 	}
 }