mozilla/fxa-auth-server — pull request #553 by rfk (2014-02-10 03:12:21+00:00)
Title: Add retry-after header to backoff-style error responses.

Our backoff protocol says we'll send the retry-after value as both a header and a key in the body. This PR updates the corresponding error objects to include the header. Fixes #331.

@dannycoates r?, and any suggestions for a clean way to test these error cases?