/**
  * Reset de ACL en bouw opnieuw op
  */
 private function _initAcl()
 {
     $this->_acl = new \MUtil_Acl();
     if (get_class(self::$_instanceOfSelf) !== 'Gems_Roles') {
         throw new \Gems_Exception_Coding("Don't use project specific roles file anymore, you can now do so by using the gems_roles tabel and setup->roles from the interface.");
     }
     // Probeer eerst uit db in te lezen met fallback als dat niet lukt
     try {
         $this->loadDbAcl();
     } catch (\Exception $e) {
         \Gems_Log::getLogger()->logError($e);
         // Reset all roles
         unset($this->_acl);
         $this->_acl = new \MUtil_Acl();
         //Voeg standaard rollen en privileges in
         $this->loadDefaultRoles();
         $this->loadDefaultPrivileges();
     }
     // Now allow 'master' all access, except for the actions that have the
     // nologin privilege (->the login action)
     if (!$this->_acl->hasRole('master')) {
         //Add role if not already present
         $this->_acl->addRole('master');
     }
     $this->_acl->allow('master');
     $this->_acl->deny('master', null, 'pr.nologin');
 }