Git commits in Moodle 3.2.1 by Matt Davidson

commit cc15b9d46f32f278c99e9176c2796ea822b3dc59
Author: Matt Davidson <davidso1@rose-hulman.edu>
Date:   Mon, 12 Dec 2016 21:22:51 +0800
Tag:    v3.2.1

MDL-56810 unoconv: task fails if user removed