Running graphics and QML files would just be asking for trouble.

Change-Id: I36ae4d060d1794f572230b04d1b1d4de30ed80e8
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>