Git commits in Moodle 3.10.0 by Julien Boulen

commit f9f41f5061a247a003ebba4f36af32cdbfdb2144
Author: Julien Boulen <julien.boulen@univ-rennes2.fr>
Date:   Wed, 02 Sep 2020 22:00:20 +0800
Tag:    v3.10.0-beta

MDL-67278 course: Use autocomplete widget for course category selector