WooCommerce Product Reviews Pro 1.20.0

* Fix - If WordPress Discussion settings require a logged in registered user to leave a comment, an "Invalid Request" error might have shown to anonymous users who attempted to leave a review

* Feature - No more duplicated reviews! Update previous customer reviews instead of adding multiple reviews from a customer for a specific product
* Feature - Thread watching is now available for Guest users by asking their email addresses
* Fix - Ensure embedded videos use correct external links

* Feature - Supports JSON-LD Schema.org markup in stores running WooCommerce 3.0+
* Fix - Remove login prompt for logged in customers when only verified reviews are allowed
* Fix - Ensure styles & scripts are loaded where needed when "WooCommerce" string is translated
* Misc - Added support for WooCommerce 3.0
* Misc - Removed support for WooCommerce 2.4