public function createFormBuilder($data = null, array $options = array())
    {
        if (version_compare(phpversion(), '5.5', '<')) {
            return $this->_container->get('form.factory')->createBuilder('form', $data, $options);
        }
        else {
            return $this->_container->get('form.factory')->createBuilder('Symfony\Component\Form\Extension\Core\Type\FormType', $data, $options);
        }
    }