Git commits in Moodle 3.1.6 by Andrew Hancox

commit 9005f18486ba6a0fe0d676205c8301a2361fe8e5
Author: Andrew Hancox <andrewdchancox@googlemail.com>
Date:   Tue, 07 Mar 2017 17:59:55 +0800
Tag:    v3.1.6

MDL-58172 mod_choice: Make export choice respect id fields