Developer credits
Git commits in Moodle 2.6.9 by Ankit Agarwal
commit 82406581afc4fa6e18051900434004d8563cf5c0 Author: Ankit Agarwal <ankit@moodle.com> Date: Thu, 12 Feb 2015 16:58:58 +0800 Tag: v2.6.9 MDL-38466 filters: Redos protection and unit tests