Added Variant Low Qty Warn option and threshold input
adjusted mini-cart qty badge position ; added method to show warning badge if user has an item in their cart that has a low inventory warning and is below the low warning threshold ; added badge html
added existential check to inventoryQuantity
added warning badge to cart icon and to individual items in the cart drawer when a variant qty is below the set threshold
Merge branch 'master' of github.com:ongoworks/reaction