Git commits in Moodle 3.2.1 by Arnaud Trouve

commit 9de4bbf8a8023421f74dba1013f7b990e0e69ad3
Author: Arnaud Trouve <ak4t0sh@free.fr>
Date:   Thu, 15 Dec 2016 22:11:30 +0800
Tag:    v3.2.1

MDL-53044 auth : force change on expired password

commit bc0721c7d9414f4b30bdf0324e5d8895e8a143ad
Author: Arnaud Trouve <ak4t0sh@free.fr>
Date:   Sat, 05 Nov 2016 01:41:00 +0800
Tag:    v3.2.1

MDL-56525 forum: remove targeted user enrolment check

commit 7c890919957fdf4da1967d0055394d323ae1ec06
Author: ak4t0sh <ak4t0sh@free.fr>
Date:   Thu, 03 Nov 2016 06:15:45 +0800
Tag:    v3.2.1

MDL-55720 course: fix potential undefined variable and cleaning