Include reference_id in DataResponse in PaymentMethodResponse in Payment.
Include external_reference_id in DataResponse in PaymentMethodResponse in Payment.
Include external_resource_url in DataResponse in PaymentMethodResponse in Payment.
Fix is_same_bank_account_owner type. Now it is bool instead of string.
Include sub_type in PointOfInteractionRequest in Payment.
Include sub_merchant in ForwardData in Payment.
Fix differential_pricing_id type. Now it is int instead of string.
Solution for issue 56.
Initial release