YITH WooCommerce Active Campaign for WooCommerce Premium 2.30.0

* New: support for WooCommerce 4.2
* Tweak: verify if user is already registered in AC, when registration fails
* Tweak: remove cart from queue after completed status
* Tweak: fixed pagination issue with API call
* Fix: added a new check to avoid to remove tags from contacts by accident
* Fix: issue with name for the fields input, preventing option from correctly saving
* Fix: data format for the order

* New: support for WooCommerce 4.1
* New: support for Active Campaign API 3.0
* New: added deep data integration, to store orders on Active Campaign
* Update: Greek language
* Update: plugin framework
* Tweak: removed unnecessary css rule for subscription form
* Tweak: add admin text fields on wpml-config xml
* Fix: shortcode callback now returns template instead or printing it
* Fix: create WC class instances, if it is not on checkout process

* New: support for WordPress 5.4
* New: support for WooCommerce 4.0
* Update: plugin framework
* Update: Spanish language
* Tweak: code refactoring
* Tweak: minor CSS improvements
* Fix: export procedure ignoring export conditions