Shopify/shopify_api — pull request #40 by davefp (2012-11-15 14:15:23+00:00)
Title: Adds customer helper to CustomerGroup resource

Fixes #39

Basically a carbon copy of methods like `smart_collection` from the Product resource: https://github.com/Shopify/shopify_api/blob/master/lib/shopify_api/resources/product.rb#L21

@csaunders @lkrupphunter
@edward