cdnjs is a free distributed JS library delivery service.
NextGEN Gallery is a WordPress gallery plugin maintained by Imagely.
Jetpack is a popular WordPress plugin created by Automattic, the people behind WordPress.com.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Lightbox is small javascript library used to overlay images on top of the current page.
NextGEN Gallery is a free open-source image management plugin for the WordPress content management system.
PHP is a general-purpose scripting language used for web development.
Twenty Fifteen is the default WordPress theme for 2015.
WooCommerce PayPal Checkout Payment Gateway is a WordPress plugin which allows you to securely sell your products and subscriptions online using in-context checkout.
WooCommerce is an open-source ecommerce plugin for WordPress.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.