/**
* Convenient function to create an error response.
*
* @param string $error the error message
* @param array $additional any additional data to be sent with the error
* message
* @param Request $request the request
*/
public static function createError($error, $additional = array(), $request = NULL)
{
$response = new Response($request);
$response->loadData(array_merge(array('error' => $error), $additional));
return $response;
}
