Incorrect path for skip-link-focus-fix.js and navigation.js

[dloewen]

In lib/theme-functions.php, lines 87 and 89, these files are missing a slash after the get_template_directory_uri() function, so they give a 404 when visiting the website:

• assets/js/vendor/skip-link-focus-fix.js
• assets/js/vendor/navigation.js

Suggested fix:

    wp_enqueue_script( '_mbbasetheme-navigation', get_template_directory_uri() . '/assets/js/vendor/navigation.js', array(), '20120206', true );

    wp_enqueue_script( '_mbbasetheme-skip-link-focus-fix', get_template_directory_uri() . '/assets/js/vendor/skip-link-focus-fix.js', array(), '20130115', true );