Git commits in Moodle 3.2.3 by Tony Butler

commit 9ac0280f80c50ceee235e285b44eb1bd48d0eea9
Author: Tony Butler <tonyjbutler@gmail.com>
Date:   Fri, 21 Oct 2016 19:20:17 +0800
Tag:    v3.2.3

MDL-56324 assignfeedback_editpdf: Revert erroneous commits