Git commits in Moodle 3.4.1 by Frederic Massart

commit aabf2644604dc8b6f6b9bb499d060d1c8ae716d1
Author: Frederic Massart <fred@fmcorz.net>
Date:   Thu, 23 Feb 2017 12:10:14 +0800
Tag:    v3.4.1

MDL-58058 competency: Allow unspecified sortorder for new competencies