Shopify/active_shipping — pull request #182 by BlakeMesdag (2014-08-11 22:36:26+00:00)
Title: Use passed in commercial_base option for USPS

Currently USPS uses the global `:commercial_base` option when getting rates etc. This is sometimes overridden when finding rates, but is ignored. This modifies find_rates and its descendent methods to use the passed in `options`.

#### Review

@garymardell

/cc @Shopify/shipping