* Improvement - Compatibility with WooCommerce 3.8.
* Fix - WPML Multilingual CMS 4.2.9 compatibility fixes.
* Fix - WooCommerce Multilingual 4.6.7 compatibility fixes.
* Fix - WPML Multilingual CMS 4.2.9 compatibility fixes.
* Fix - WooCommerce Multilingual 4.6.7 compatibility fixes.