YITH Google Product Feed for WooCommerce 1.31.0

New Compatibility with YITH WooCommerce EU Energy Label
Fix Warning get property or non object
Fix Js on google product feed pages
Tweak Generating feed block when you click on generate feed button
Update Spanish translation
Update Plugin Framework
Dev Filter yith_wcgpf_settings_panel_capability
Dev Filter yith_wcgpf_show_shipping_information_on_product_page
Dev Filter yith_wcgpf_show_product_information_on_product_page

• New: Support to WordPress 4.9.6
• New: Support to WooCommerce 3.4.0
• Update: plugin framework 3.0.11
• Update: Dutch translation

New: support to WordPress 4.9.2
New: support to WooCommerce 3.3.0-RC2
Update: plugin framework 3.0.11
Dev : added yith_wcgpf_feed_url_merchant