* Fix: admin language issue in product categories in combination with WPML
* Fix: category badge issues in combination with WPML
* Update: plugin framework
* Update: language files
* Tweak: prevent 'non well formed numeric value' errors
* New: support for WooCommerce 3.9
* New: added 'yith-wcbm-product-has-badges' CSS class to product with badges
* Update: plugin framework
* Update: language files
* Tweak: fixed issue if date column doesn't exist
