* New: Support for WordPress 5.4
* New: Support for WooCommerce 4.0
* Fix: fixed an issue with the variation rules selector
* Dev: all strings escaped
* Dev: deleted Emogrifier class load
* New: support WooCommerce 3.8
* Update: Spanish language
* Update: Italian language
* Update: updated plugin core
* Fix: added empty value to avoid warning when do stripslashes callback