Upgrading away from a deprecated API version to the latest
Don't use the request method to determine payment step
Added a method to send a CreateBillingAgreement request
Only the token needs to be sent to PayPal at this point
Made these arguments lowercase for consistency
Added a method to send a DoReferenceTransaction request
Allowing for a request of None, for calls not tied to a user request
Merge branch 'do-reference-transaction'
Merge branch 'create-billing-agreement'
Merge branch 'api-version-upgrade'