Git commits in Moodle 3.1.4 by Shamim Rezaie

commit a1e7685b366faa315dab1497d7e85304dbb81b42
Author: Shamim Rezaie <rezaie@foodle.org>
Date:   Mon, 21 Nov 2016 01:52:16 +0800
Tag:    v3.1.4

MDL-52840 assignsubmission_file: Change default setting file size