Git commits in Moodle 3.6.0 by HungTran

commit d2d82a9d7da517e8dcffdb02e2b295657d32fafc
Author: HungTran <Hung.TranMinh1@Nashtechglobal.com>
Date:   Thu, 26 Apr 2018 15:13:23 +0800
Tag:    v3.6.0-beta

MDL-62014 course: Add title to activity completion button