Generate a subscription product and calculate its price
Merge branch 'master' into create-subsription-products

* master:
  [68239646] One shipping address per subscription
  [#68239646] One Shipping Per Subscription
  Remove duplicated factories
  [#68239646] One Shipping Per Subscription
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Per Subscription
  [#68239646] One Shipping Per Subscription
  [#68239646] One Shipping Per Subscription
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Address Per Subscription
  Adds factories for easy load
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Address Per Subscription
  [#68239646] One Shipping Address Per Subscription

Conflicts:
	app/models/spree/subscription_product.rb
	spec/models/spree/subscription_product_spec.rb
Increment test coverage
Add rake task to generate all subscription products combinations
Increment test coverage for generate subscription products task
Merge branch 'master' into create-subsription-products
Merge pull request #9 from stevenbarragan/create-subsription-products

Create subsription products