Проблема с переводом

Пытаюсь сделать перевод темы. Создал PO и МО файлы, но ВП их «не видит». Вот в functions.php упоминается о переводе, но я не совсем понял что нужно сделать. Подскажите други.

/* Translators: If there are characters in your language that are not
	 * supported by Source Sans Pro, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$source_sans_pro = _x( 'on', 'Source Sans Pro font: on or off', 'fruitful' );

	/* Translators: If there are characters in your language that are not
	 * supported by Bitter, translate this to 'off'. Do not translate into your
	 * own language.
	 */
	$bitter = _x( 'on', 'Bitter font: on or off', 'fruitful' );

	if ( 'off' !== $source_sans_pro || 'off' !== $bitter ) {
		$font_families = array();

		if ( 'off' !== $source_sans_pro )
			$font_families[] = 'Source Sans Pro:300,400,700,300italic,400italic,700italic';

		if ( 'off' !== $bitter )
			$font_families[] = 'Bitter:400,700';

		$query_args = array(
			'family' => urlencode( implode( '|', $font_families ) ),
			'subset' => urlencode( 'latin,latin-ext' ),
		);
		$fonts_url = add_query_arg( $query_args, "//fonts.googleapis.com/css" );
	}

	return $fonts_url;
}

function fruitful_setup() {
	/**
	 * Make theme available for translation
	 * Translations can be filed in the /languages/ directory
	 * If you're building a theme based on Fruitful theme, use a find and replace
	 * to change 'fruitful' to the name of your theme in all the template files
	 */
	load_theme_textdomain( 'fruitful', get_template_directory() . '/languages' );