Usage: php worker.php {start|stop|restart|check|status}

	* start   		 [start Ranksystem Bot]
	* stop    		 [stop Ranksystem Bot]
	* restart 		 [restart Ranksystem Bot]
	* check   		 [check Ranksystem Bot is running; if not, start it; no output if all is ok]
	* status  		 [output status Ranksystem Bot]