protected static function loadAvailableLanguages()
    {
        $matches = array();
        foreach (glob(PHPCI_DIR . 'PHPCI/Languages/lang.*.php') as $file) {
            if (preg_match('/lang\.([a-z]{2}\-?[a-z]*)\.php/', $file, $matches)) {
                self::$languages[] = $matches[1];
            }
        }
    }