Git commits in Moodle 3.4.8 by Damyon Wiese

commit 907b377e51c32ea37feef53e10684b504e103273
Author: Damyon Wiese <damyon@moodle.com>
Date:   Tue, 29 Jan 2019 09:23:36 +0800
Tag:    v3.4.8

MDL-64651 comments: Do not send referrer