Developer credits
Git commits in Moodle 3.1.0 by Michael Milette
commit 89e68e6c1e98feb6ab2f4bba28ca7c0c639b4635 Author: Michael Milette <michael.milette@tngconsulting.ca> Date: Wed, 23 Jul 2014 13:46:06 +0800 Tag: v3.1.0-beta MDL-42460 mod_feedback: Fix markup validation