sheepluva [Tue, 25 Oct 2011 19:46:59 +0200] rev 6205
remove any thread-safe stuff I introduced since it's not needed
as unC0Rr pointed out it's not needed, we are single-threaded (thanks :D)
from what I understood this time, Qt is clever enough to sequentialize all events and child destructions instead of spawning threads
also some docs/comments