edx/edx-platform — pull request #1471 by dmitchell (2013-10-23 19:49:14+00:00)
Title: Require course ids to be case-insensitively unique

@singingwolfboy @shnayder @adampalay Can whatever set of necessary reviewers is appropriate please review asap for fixing https://edx-wiki.atlassian.net/browse/STUD-873