YITH WooCommerce Active Campaign for WooCommerce Premium 2.30.0

New: Support WordPress 5.0.2
Update: Updated plugin FW
Dev: Dev: added filter yith_wcac_synchronize_order_contact_params

* New: WooCommerce 3.5 support
* Tweak: updated plugin framework
* Update: Dutch language

* New: WooCommerce 3.5-rc support
* New: WordPress 4.9.8 support
* Tweak: updated plugin framework
* Tweak: subscription after user registration now sends First and Last name too
* Update: Italian language
* Update: Dutch language
* Fix: js error in WP Dashboard page
* Fix: fatal error when completing order on backend
* Fix: issue with fields being assigned incorrectly
* Dev: added yith_wcac_checkout_fields filter