Community Add-Ons

Added VAT style tax recalculation, which many VAT liable shopowners prefer.

Allow interAllow interoperability with Order Editor (contribution 1435).

Allows cross selling at a discount; a product can be linked with another specific product, or another product from a specific category, with an associated discount (in dollars or % off) if both are purchased together. The associations must be hard coded, but once they are, generic logic can be added to the product_info page to display any available Better Together discount.