Git commits in Moodle 3.1.10 by Jun Pataleta

commit b8067e0b01d7bdd6009ef09126d5e30777981e92
Author: Jun Pataleta <jun@moodle.com>
Date:   Fri, 08 Dec 2017 04:09:56 +0800
Tag:    v3.1.10

weekly release 3.1.9+