edx/edx-platform — pull request #1133 by jkarni (2013-09-25 21:15:54+00:00)
Title: Jkarni/fix/customtag error 

Reviewers: @cahrens @singingwolfboy
Fix for [STUD-786].

There's some sorry-looking HTML that this uses to inform the author that that component is being troublesome; if this isn't going out as a hotfix, it'd be nice if @frrrances or @talbs could look at it.