fixup! delete EventListener

lib/EventManagement.php

@@ -27,6 +27,15 @@ class EventManagement{
 	 */
 	private $handlers = array();
 
+	/**
+	 * Add a new handler, which is called on a new incoming event.
+	 * 
+	 * @param EventListener $handler
+	 */
+	public function registerHandler($handler){
+		$this->handlers[] = $handler;
+	}
+
 	/**
 	 * Get a list of event ids
 	 *