Merge pull request #15 from dguzenko/gh-pages

ZOO cart. Updated layout set up + discounts
Merge pull request #16 from dguzenko/gh-pages

ZOO cart. Update Shipping
Merge pull request #17 from dguzenko/gh-pages

ZOO cart. Update variation element setup
Merge pull request #18 from dguzenko/gh-pages

ZOOcart. Orders
Merge pull request #19 from dguzenko/gh-pages

ZOO cart. Subscriptions
Switched to Flatdoc