protected function setMetaTags(Controller $controller)
    {
        $controller->setMeta(array('charset' => 'utf-8'));
        $controller->setMeta(array('http-equiv' => 'X-UA-Compatible', 'content' => 'IE=edge'));
        $controller->setMeta(array('name' => 'viewport', 'content' => 'width=device-width, initial-scale=1'));
        $controller->setMeta(array('name' => 'author', 'content' => 'GPLCart'));
    }