* Fix - Generate a barcode for tickets created via WP Admin.
* Fix - Replace deprecated jQuery 3 methods. * Tweak - WC 5.2.2 compatibility. * Tweak - WP 5.7.1 compatibility.
* Add - Menu item to the new WC Navigation. * Fix - Use method_exists to accommodate for backwards compatibility with old WC versions. * Tweak - WC 5.1 compatibility. * Tweak - WP 5.7 compatibility.