Git commits in Moodle 3.1.0 by M Kassaei

commit 50aaf13e01204bfc05bf2de171aed7b7b2c834e1
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Tue, 02 Feb 2016 18:50:16 +0800
Tag:    v3.1.0-beta

MDL-52964 Qtype: Add behat tests to core question types

commit a752c61cb4e6287f51a26e62601d57555cfb7e32
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Mon, 01 Feb 2016 20:04:10 +0800
Tag:    v3.1.0-beta

MDL-52927 qtype ddwtos and ddimageortext focus using keyboard

commit 1a282212c18cea304f6759e163f4821d2268cd3d
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Thu, 17 Dec 2015 18:00:48 +0800
Tag:    v3.1.0-beta

MDL-50794 workshop: Allow restricting submitted file types

commit c398f6ed44e86ec3187a88e106ef4f8a1aad0e20
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Tue, 01 Dec 2015 23:44:59 +0800
Tag:    v3.1.0-beta

MDL-52365 qtype ddwtos & ddimageortext: 20 drag items IE11/Edge

commit c7cad17b44df241ed88796484a3374689b243a5d
Author: M Kassaei <m.kassaei@open.ac.uk>
Date:   Tue, 01 Dec 2015 19:01:30 +0800
Tag:    v3.1.0-beta

MDL-52363 qtype ddimageortext: Incorrectly sized drag item