* Update: Tested up to WooCommerce 3.9.0.
* Fix: Add min/max size keys to WPML config.
* Fix: Fatal error when all child contents are out of stock and out of stock products are hidden.
* Fix: Fatal error calculating prices when all child contents are out of stock.
* Fix: Do not show add to cart button when no contents are available.
* Fix: Hide quantity inputs when the parent container is not available.
* New: Introduce woocommerce_mnm_content_loop hook.