/**
  * Check permission for passed action
  * Rewrite CE save permission to EE save_revision
  *
  * @param string $action
  * @return bool
  */
 protected function _isAllowedAction($action)
 {
     if ($action == 'save') {
         $action = 'save_revision';
     }
     return parent::_isAllowedAction($action);
 }