/**
* Regenerate the Acl from the DB and update the cache and Zend_Registry
*
* @return boolean
*/
public static function save()
{
$acl = App_FlagFlippers_Manager::_generateFromDb();
App_FlagFlippers_Manager::_storeInCache($acl);
App_FlagFlippers_Manager::_storeInRegistry($acl);
}