Git commits in Moodle 3.3.1 by Daniel Materka

commit 67803cb430f9baaae1e44d93ca37d4b671d356af
Author: Daniel Materka <daniel.materka@gmail.com>
Date:   Wed, 17 May 2017 02:00:02 +0800
Tag:    v3.3.1

MDL-49988 wiki: fix broken page layout if html contains line breaks