/**
 * Enable GetText Translation
 * 
 * @param  mixed   $languages         language (string) or array of several languages
 * @param  string  $domain            GetText domain to use (basename for .mo+.po files)
 * @param  string  $translation_root  path where locales are located
 */
public function activateGetText($languages = null, $domain = "translations", $translation_root = null) 
{
    if($languages === null)
        $languages = [\Config::get('app.locale')];

    if(!is_array($languages))   
        $languages = [$languages];

    if($translation_root === null) 
        $translation_root = base_path() . "/locale/";

    $tr = new \PHPTAL_GetTextTranslator();

    call_user_func_array([$tr, "setLanguage"], $languages);
    $tr->addDomain($domain, $translation_root);
    $tr->useDomain($domain);

    $this->phptal->setTranslator($tr);

}