v0.5.0 2016-06-13

Added: Paypal endpoints for use with the vault flow [TylerCain]
Added: Construct Paypal accounts from customer responses
Added: Support submit_for_settlement/2 to Transaction
Added: Typespec for the Transaction struct
Fixed: Typespec for the CreditCard struct
Fixed: Include xmerl in the list of applications to ensure that it is packaged with exrm releases.

v0.4.0 2016-04-20

Added: Available only during testing, TestTransaction, which can be used to transition transactions to different states.
Added: Add find, void, and refund on Transaction. [Tyler Cain]
Added: Add support for PaymentMethod, PaymentMethodNonce. [Tyler Cain]
Added: Basic support for subscription management, starting with create. [Ryan Bigg]

Fixed: Log unprocessable responses rather than inspecting them to STDOUT.
Fixed: Convert 404 and 401 responses to error tuples, they are common problems with misconfiguration.

Fixed: Lookup the certfile path at runtime rather than compile time. This fixes potential build errors when pre-building releases or packaging on platforms like Heroku.

Added: Support for updating and deleting customers.
Added: A Nonces module for help testing transactions.
Changed: Include testing support Braintree.Testing.CreditCardNumbers as well as Braintree.Testing.Nonces in lib/testing, making it available in packaged releases.
Fixed: Trying to call XML.load on empty strings returns an empty map.
Removed: The __using__ macro has been removed from HTTP because the naming conflicted with delete actions. An equivalent macro will be introduced in the future.