Git commits in Moodle 3.1.x by Mike Churchward

commit 4e3c08c00435c336b20af8ad7cdd97ee61f258c6
Author: Mike Churchward <mike@remote-learner.net>
Date:   Wed, 16 Nov 2016 01:43:34 +0800
Tag:    v3.1.4

MDL-48055 q_u_outline, q_u_complete: added checks for grade visibility.

commit b5c0146072e13aeb384dffc8729f9ecbaadfbcc7
Author: Mike Churchward <mike@remote-learner.net>
Date:   Tue, 15 Nov 2016 05:04:10 +0800
Tag:    v3.1.5

MDL-36233 mod_assign: fixed submission time comparison sql and test.

commit bbe5d6c8279bc9ad774cf86636caa934c21b2eaf
Author: Mike Churchward <mike@remote-learner.net>
Date:   Thu, 02 Jun 2016 22:32:43 +0800
Tag:    v3.1.1

MDL-54805 portfolio_download: Adding a 'require' of necessary library file