* New: Support to WooCommerce 3.9.0 * Tweak: prevent fatal error on generate feed file * Update: Plugin-fw * Dev yith_wcgpf_get_product_title filter
* Update: Plugin-fw
* Tweak: check isset the variable before print the content * Tweak: check if isset $values['feed_template'] * Fix: display google product feed variation information * Fix: generate google categories for en locale * Update: Italian language
