Git commits in Moodle x.x.x by Elizabeth Dalton

commit fbb219617b5be9090014580923133572cc2f7477
Author: Elizabeth Dalton <elizabeth@moodle.com>
Date:   Fri, 30 Nov 2018 08:16:17 +0800
Tag:    v3.6.0-rc3

MDL-64000 usertours: Add tours for key 3.6 features