Git commits in Moodle 3.3.1 by Davo Smith

commit 4ca3991e567260e405a319acca2a6e1adaef8b3f
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Tue, 20 Jun 2017 18:13:03 +0800
Tag:    v3.3.1

MDL-59297 block_myoverview: fix fatal error (missing require_once)