Author: Thom Rawson
MDL-63210 core: AJAX call redirects to login page when session expired
Backport of MDL-54551.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d6e31537bc339aca978df3e7b734197f0dab64a4
http://github.com/moodle/moodle/commit/d6e31537bc339aca978df3e7b734197f0dab64a4
+ 3.5 en [servicerequireslogin,core_webservice]