* Fix - Sale price condition check problem if product sale price has sale date set
* Fix - In some cases BXGY method discounts not the cheapest products
* Fix - Trashed products appear in the product conditions user interface
* Fix - Cart discount subtotal off by a few cents under specific conditions
* Fix - Volume pricing table not displayed on function call if disabled in settings
* Tweak - Cart item price adjustments are now applied via filters; no longer set on product
* Tweak - Changed WooCommerce get price filter hook position from very late to very early
* Tweak - Other minor bug fixes and improvements