Fix invalid JSON error when deleting Card from Customer#992

Merged

danj-stripe merged 3 commits intomasterfrom danj/bugfix/deleting-cards

Jul 13, 2018

+127-10

Commits on Jul 11, 2018

Fix completion block type in STPCustomerContextTest
danj-stripe
committed

Commits on Jul 12, 2018

Add STPGenericStripeObject to represent a minimal, generic object.
danj-stripe
committed
Change completion block type of private API deleteSource:fromCustomerUsingKey:completion:
danj-stripe
committed