Implemented payment_item
Removed unused variable
Implemented subscription_adjustment
Implemented id and payment_request_id
Made subscription_adjustment POSTing accept 200 as a valid response
Fixed a couple fields in Subscription Adjustment
Implemented subscription adjustment deletion
Added composer to gitignore
Added .idea to gitignore
Added vendor to gitignore
Updated LineItemTest
Updated PaymentRequestTest
Updated PaymentTest
Added SubscriptionAdjustmentTest
Added PaymentItemTest
Added test for deletion to ClientTest
Finished implementing tests, removed debug messages
Merge pull request #3 from mrostman/master

Implements fields/items previously not implemented