Git commits in Moodle 3.2.2 by Daniel Thee Roperto

commit a204d7d9216fa898b9d821f71ed46c4ead625d36
Author: Daniel Thee Roperto <danielroperto@catalyst-au.net>
Date:   Thu, 05 Jan 2017 12:31:31 +0800
Tag:    v3.2.2

MDL-57576 assignment: Overwrite feedback file if it has the same name.