Git commits in Moodle 3.7.x by Julien Boulen

commit b1d1369dff7c074844fdb556827f0782b02f3c2d
Author: Julien Boulen <julien.boulen@univ-rennes2.fr>
Date:   Mon, 18 Mar 2019 18:20:08 +0800
Tag:    v3.7.0-beta

MDL-46803 course: Prevent unenrol users with multiple roles during reset

commit 1a549472fab329b7a17bda2d28cdbe56a461090c
Author: Julien Boulen <julien.boulen@univ-rennes2.fr>
Date:   Fri, 15 Feb 2019 16:53:00 +0800
Tag:    v3.7.0-beta

MDL-62728 lang: display a warning when missing some locales on server