edx/edx-platform — pull request #3726 by dmitchell (2014-05-14 19:36:44+00:00)
Title: Dhm/opaque dont skip

Remove skip tests which meant fixing split to correctly serialize and deserialize references which meant fixing the migrator.

STUD-1592, STUD-1603, LMS-2642

@cpennington @nasthagiri please review or delegate. This is not a prereq for merging opaque-keys to master