* New: Support for WordPress 5.4
* New: Support for WooCommerce 4.0
* New: added a column with the vendors names is available
* Update: plugin fw
* Fix: fixed a warning on the order export
* Dev: added new filter yith_wcqe_get_order_purchased_products_names
* Dev: added new filter ywqe_customers_export_interval and ywqe_display_pruchased_products_column_for_customers_export
* Dev: added an offset in the customer render to avoid unexpected timeouts
* Dev: all string escaped
New: Support to WooCommerce 3.9
New: Added column 'products purchased' in order csv and customer csv
New: Added a new column with the purchased gift cards codes if available
New: Added a new column with the order ID in the gift card export
Update: Plugin core
Fix: fixed radio buttons in the settings
Dev filter yith_wcqe_get_customer_csv_value
Dev: added an offset to the gift card csv to avoid timeouts
Dev: added an offset to the coupons csv to avoid timeouts
