Git commits in Moodle 3.5.2 by Thom Rawson

commit d6e31537bc339aca978df3e7b734197f0dab64a4
Author: Thom Rawson <thomw@tallthom.com>
Date:   Sun, 06 May 2018 13:25:39 +0800
Tag:    v3.5.2

MDL-63210 core: AJAX call redirects to login page when session expired