edx-solutions/edx-platform — pull request #86 by mattdrayer (2014-06-13 15:28:43+00:00)
Title: Mattdrayer/api authn 401to403

@martynjames, as discussed I've changed the system's response for invalid authentication -- when a call to authenticate() yields None -- from 401 Unauthorized to 403 Forbidden. @ziafazal, FYI