Git commits in Moodle 3.7.1 by Marina Glancy

commit a024a024e80663b5a00af55c492907f88319306d
Author: Marina Glancy <marina@moodle.com>
Date:   Wed, 29 May 2019 16:28:03 +0800
Tag:    v3.7.1

MDL-65726 core_roles: allow to create roles in install.php


commit d6c2bf620cca2d6710f58bcb4e94e417d3db6de4
Author: Marina Glancy <marina@moodle.com>
Date:   Mon, 27 May 2019 23:45:58 +0800
Tag:    v3.7.1

MDL-65726 role: do not fail unittest if plugins create their roles