Merge pull request #1 from stripe/master

Merge stripe:master into mikez:master
add support for multiple subscriptions
add first integration tests for multiple subscriptions
update Python client binary for multiple subscriptions
add Subscription to stripe resource imports
Add back deprecated updated and cancel subscription methods
add back update_subscription and cancel_subscription to deprecated python client
Remove deprecation warnings on old methods

We'll support these indefinitely, and generally try not
to tie bindings version to API version
Typo
Add back in test for legacy sub update/cancel
Support deleting subscription discounts
Merge pull request #58 from jimdanz/ms

Ms