Git commits in Moodle 3.0.5 by Steve Bader

commit 2f61c533d4f71cbcaf5d6aa353970442be8b27d9
Author: Steve Bader <smbader@ncsu.edu>
Date:   Tue, 26 Jan 2016 00:56:51 +0800
Tag:    v3.0.5

MDL-49852 mod_assign: Fix group assignment completion tracking