/**
  * Setup the class, if it has already been initialized, return the initialized instance.
  *
  * @access public
  * @since 0.7.5
  * @see cnAdminActions()
  */
 public static function init()
 {
     if (!isset(self::$instance)) {
         self::$instance = new self();
         self::register();
         self::doActions();
     }
 }