public function actionExportLanguage($id)
    {
        $language = $this->em->find("WebCMS\Entity\Language", $id);

        $export = array(
            'name' => $language->getName(),
            'abbr' => $language->getAbbr(),
            'translations' => array(),
        );

        foreach ($language->getTranslations() as $translation) {
            if ($translation->getBackend()) {
                $export['translations'][] = array(
                'key' => $translation->getKey(),
                'translation' => $translation->getTranslation(),
                'backend' => $translation->getBackend(),
            );
            }
        }

        $export = json_encode($export);
        $filename = $language->getAbbr().'.json';

        $response = $this->getHttpResponse();
        $response->setHeader('Content-Description', 'File Transfer');
        $response->setContentType('text/plain', 'UTF-8');
        $response->setHeader('Content-Disposition', 'attachment; filename='.$filename);
        $response->setHeader('Content-Transfer-Encoding', 'binary');
        $response->setHeader('Expires', 0);
        $response->setHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0');
        $response->setHeader('Pragma', 'public');
        $response->setHeader('Content-Length', strlen($export));

        ob_clean();
        flush();
        echo $export;

        $this->terminate();
    }