Merge pull request #2446 from edx/rc/2014-02-05

rc/2014-02-05
Make receipt-ids actually generate UUIDs

LMS-2192
Merge pull request #2487 from edx/hotfix/feb-10-2014

Make receipt-ids actually generate UUIDs
Missed some places to change the registration response status code

LMS-2203
Merge commit 'e52c9b51' into jbau/edx-west/rc-merge-20140213