However many images there are on a Variation, include them all

We were using the <relations> element to group Variations. That was not working. Merchantry advised us to use the <StyleCode> attribute instead. This works, but it has a significant side effect: the parent product is **not** part of the Feed that we push. Only the Variations are. Merchantry automatically generates a parent product when it groups the Variations. 

We can no longer rely on the parent product to transmit additional product images. PR adjusts logic that restricted Variations to one image.