Add support for capturing extra field data in API resources.
Review Request #3439 — Created Oct. 21, 2012 and submitted
Add support for capturing extra field data in API resources. If a WebAPIResource specifies allow_unknown=True, then any additional fields not otherwise known will be provided in an extra_fields parameter to the function. This makes it easy to see and process all such fields.
Used this with Review Board, and it worked.