* New: Add support for new WooCommerce updater.
* Fix: PHP 7.1 warnings in cart/checkout.
* Fix: Chrome change event bug.
* Fix: Load plugin textdomain on init hook as recommended by Codex.
* Fix: Re-ordering logic.
* Fix: PHP Warning for illegal offset type in isset or empty in class-wc-product-mix-and-match.php.
* Tweak: Middle-align MNM table cells.