Bugfix for Semaphore
Queue now using synchronized for CS (maybe bad!!)
Dispatcher will now:
	-end when no handlers are in the map
	-don't dispatch events without handlers (which we're removed before)
	-derigster the handler, if event has 'null-messeage'
Moved errohandling from TCPTexthandle to Dispatcher
WorkerThread now dye properly, if interrupted
Hangman-server invoke cleanUp-method, if game has ended
	->This cause to derigster all EH and closes all sockets from the
	handles