Git commits in Moodle 3.4.0 by David Balch

commit 8fb9a27170710cf8f4c52d2235b2aff0f5dd63f1
Author: David Balch <david.balch@conted.ox.ac.uk>
Date:   Mon, 12 Jun 2017 23:21:28 +0800
Tag:    v3.4.0-beta

MDL-30634 auth_ldap: Assign arbitrary system roles via LDAP sync.


commit 053c55a76c5b658ae0866f3a3fde3d6bb636c6f2
Author: David Balch <david.balch@conted.ox.ac.uk>
Date:   Thu, 18 May 2017 16:15:42 +0800
Tag:    v3.4.0-beta

MDL-58919 assignsubmission_file: Wider accepted file types input field


commit 797a70c0ecfd58c7e3f323eb688103f9e6e3941e
Author: David Balch <david.balch@conted.ox.ac.uk>
Date:   Thu, 18 May 2017 00:52:39 +0800
Tag:    v3.4.0-beta

MDL-58919 assignsubmission_file: Add accepted file types default.