Git commits in Moodle 3.1.11 by David Monllao

commit 2078761831aa6fa493039aadc33ea2e9b88b4ff3
Author: David Monllao <davidm@moodle.com>
Date:   Fri, 09 Feb 2018 00:40:21 +0800
Tag:    v3.1.11

weekly release 3.1.10+

commit 8103058154ef2aad68e28d9316f5c327232a4ea8
Author: David Monllao <davidm@moodle.com>
Date:   Thu, 01 Feb 2018 21:26:54 +0800
Tag:    v3.1.11

weekly release 3.1.10+