/**
  * Quick parse modules feed.
  *
  * @param	string	$url		XML feed URL
  * @param	string	$cache_dir	Cache directoy or null for no cache
  * @param	boolean	$force		Force query repository
  * @return	object	Self instance
  */
 public static function quickParse($url, $cache_dir = null, $force = false)
 {
     $parser = new self();
     if ($cache_dir) {
         $parser->setCacheDir($cache_dir);
     }
     if ($force) {
         $parser->setForce($force);
     }
     return $parser->parse($url);
 }