mailer.php
static public function jump(\Base $f3, $params) {
		$target = $f3->get('GET.target');
		// trigger jump event
		if ($f3->exists('mailer.on.jump',$jump_handler))
			$f3->call($jump_handler,array($target,$params));
		$f3->reroute(urldecode($target));
	}
static public function jump(\Base $f3, $params) {
		$target = $f3->get('GET.target');
		// trigger jump event
		if ($f3->exists('mailer.on.jump',$jump_handler))
			$f3->call($jump_handler,array($target,$params));
		$f3->reroute(urldecode($target));
	}
track clicked link and reroute
@param Base $f3