edx/edx-platform — pull request #4528 by jmclaus (2014-07-23 13:42:39+00:00)
Title: BLD-1104: List units that use group configuration.

**Ticket:** [BLD-1104](https://openedx.atlassian.net/browse/BLD-1104)

**sandbox:**

@andy-armstrong , @cahrens , @frrrances , @mhoeber , @explorerleslie please review.