code: public function startAction(Request $request, Application $app)
      {
          $options = array(
              "request" => $request,
              "configuration_handler" => $app["red_kite_cms.configuration_handler"],
          );
  
          return parent::start($options);
      }
docs: Start a site from scratch action
  
  @param \Symfony\Component\HttpFoundation\Request $request
  @param \Silex\Application                        $app
  @return \Symfony\Component\HttpFoundation\Response