Developer credits
Git commits in Moodle 3.2.3 by Mark Nelson
commit 86cbb2c450bd31da65c1664c93218bea0c4c3abd Author: Mark Nelson <markn@moodle.com> Date: Mon, 01 May 2017 13:12:47 +0800 Tag: v3.2.3 MDL-58650 core_message: always use 'popup' processor for messages