Developer credits
Git commits in Moodle 2.6.2 by Kevin Wiliarty
commit 414fcf2584f15141d98a835efe0014b66d83cb52 Author: Kevin Wiliarty <kevin.wiliarty@gmail.com> Date: Wed, 21 Aug 2013 05:48:10 +0800 Tag: v2.6.2 MDL-39942: invite only users who can post to discuss