Wrong path used for Google font stylesheet

The new version breaks child themes, because it uses get_stylesheet_directory_uri instead of get_template_directory_uri for the Google fonts stylesheet in the functions.php.

wp_register_style( 'google-fonts', get_stylesheet_directory_uri() . '/font/google/stylesheet.css', array(), null );

This results in a 404 for this file if you are using a child theme (like me).