Git commits in Moodle 3.6.x by Łukasz Szeremeta

commit ac45c16544a0cb2bed3b5066917b724273b8c0e8
Author: Łukasz Szeremeta <l.szeremeta.dev@gmail.com>
Date:   Tue, 03 Apr 2018 05:03:38 +0800
Tag:    v3.6.0-beta

MDL-61826 auth: Facebook OAuth2 - getting a better-quality profile photo