Git merges in Moodle 3.5.10 by Jake Dallimore

commit de96ddee74f82c0e572762fa6d6ea3b17ffaca04
Author: Jake Dallimore <jake@moodle.com>
Date:   Fri, 03 Jan 2020 11:25:18 +0800
Tag:    v3.5.10

Merge branch 'install_35_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_35_STABLE