YITH WooCommerce Recently Viewed Products Premium 2.31.0

* New: Support to WooCommerce 3.4 RC1.
* New: General Data Protection Regulation (GDPR) compliance.
* New: Italian translation.
* New: Spanish translation.
* Update: Plugin Core.
* Update: Language files.
* Dev: New filter yith_wrvp_templates_query_args for shortcode template args.

New: Support to WooCommerce 3.3.0.
New: Support to WordPress 4.9.2.
New: Dutch translation.
Update: Plugin Core.
Update: Language file.
Fix: Slider responsive.
Fix: Load frontend classes only when needed.

New: Support to WooCommerce 3.2.0.
New: Support to WordPress 4.8.2.
New: Add widget option for order products by "Viewed Order" or "Newest".
New: Option to show/hide free products from Recently Viewed products.
Update: Plugin Core.
Update: Language file.
Fix: Products image on email do not display correctly.
Tweak: Added "Products selector" to localized variables for Recently Viewed script
Dev: added filter yith_wrvp_products_selector to let third party developers change default products selector