Allow creation of new invoice off customer
Add multiple subscription functionality - first pass
Adding tests for Subscription.
Clearing out subscription code/tests from Customer.
Ensure delete parameters are passed through for subscriptions.
Add missing List operation to card
Merge pull request #97 from surfacedamage/customer-create-upcoming-invoice

Allow creation of new Invoice off Customer
Added unit test for respond_to
Implemented #respond_to?
Override #respond_to_missing? instead
Fall back to #respond_to? if ruby version is lower than 1.9.2
cleaning up a pull request from @thomasbrus
fixed marshaling of stripe objects, fixes #90
replace multi_json with json, fixes #101
whoops, forgot 1.8 support
whoops, respond_to? cannot be protected
whoops, respond_to? cannot be protected
Add ruby 2.1.0 to travis config
Merge pull request #108 from timcraft/travis-ruby21

Add ruby 2.1.0 to travis config
allow save to take opts, and an api_key

fixes #78