YITH WooCommerce Membership Premium 2.17.0

* New - support to WordPress 5.0
* New - expired membership email
* Update - plugin framework
* Update - language files
* Tweak - fixed issue when showing download links for admin
* Dev - added yith_wcmbs_membership_history_shortcode_no_membership_message filter

New Integration with YITH Amazon S3
Update Plugin Framework

* New - support to WooCommerce 3.5.x
* New - possibility to edit Multi Vendor product limit based on Membership plan
* New - Membership Flat Rate shipping method
* New - download report IP address
* Fix - show alternative content in Shop if restricted
* Fix - support to YITH WooCommerce MailChimp
* Fix - prevent warning on empty array for filter posts method
* Tweak - prevent issues on copy and paste email in All Membership table
* Tweak - fixed style in All Memberships list
* Update - Italian language
* Update - Plugin Framework
* Dev - added yith_wcmbs_username_anchor_membership_list_table filter