Git commits in Moodle 3.1.2 by Loc Nguyen

commit d54b4cdfa182804f58687b4f4087756921dda326
Author: Loc Nguyen <loc.nguyendinh@harveynash.vn>
Date:   Mon, 13 Jun 2016 15:18:50 +0800
Tag:    v3.1.2

MDL-54832 workshop: adding landmark for userplantable