Git commits in Moodle 3.1.1 by Nigel Cunningham

commit 9efa43c6a949d8f1e26996fa7fa94e9296019bdc
Author: Nigel Cunningham <nigelc@catalyst-au.net>
Date:   Mon, 02 May 2016 13:13:20 +0800
Tag:    v3.1.1

MDL-54010 roles: Fix missing HTMLspecialchars in role export code.