edx/edx-tim — pull request #167 by jrbl (2014-03-19 00:58:48+00:00)
Title: Bugfix assessment feedback helpfulness recording (DNM)

* Helpfulness was being requested, but dropped on the floor; now it gets
serialized to the database.
XXX: this is a lie, because the jquery deferred isn't sending the
helpfulness score, and it's confusing.