public function clean() {
		if (!Configure::read('Queue.cleanuptimeout')) {
			$this->abort('You disabled cleanuptimout in config. Aborting.');
		}

		$this->out('Deleting old jobs, that have finished before ' . date('Y-m-d H:i:s', time() - (int)Configure::read('Queue.cleanuptimeout')));
		$this->QueuedJobs->cleanOldJobs();
		$this->QueueProcesses->cleanEndedProcesses();
	}