Git commits in Moodle 3.1.x by David Herney

commit cd6ba4eff21bc53c8494607475cbdcdcfc887f85
Author: David Herney <davidherney@gmail.com>
Date:   Tue, 29 Nov 2016 11:08:45 +0800
Tag:    v3.1.4

MDL-57169 backup: ensure images in category descriptions are shown