Fix for gazumping recordings

[Chris]

The latest CVS vompserver code now has a fix for the bug where it was possible to stop VDR from recording something by requesting Live TV with the MVP. At the moment there is no nice auto detection of the problem, the MVP will just freeze the picture or start showing a black screen. But, it should / will not stop VDR from recording something as before. (Not 100% guaranteeing that one, but it *should* work ) If you press stop on the MVP and wait a few seconds it will go back to the menu just fine.