* @param $languageBasePath The local base path for all language strings or emty for auto-detection
* @return $langInstance An instance of LanguageSystem
* @throws InvalidArgumentException If languageBasePath remains empty (@TODO Get rid of that old-lost code)
* @param $languageBasePath The local base path for all language strings or emty for auto-detection
* @return $langInstance An instance of LanguageSystem
* @throws InvalidArgumentException If languageBasePath remains empty (@TODO Get rid of that old-lost code)