Git commits in Moodle 3.7.1 by Mark Nelson

commit 7883551c7220607cda54fe89d7880a2322534c71
Author: Mark Nelson <mdjnelson@gmail.com>
Date:   Thu, 27 Jun 2019 15:59:42 +0800
Tag:    v3.7.1

MDL-65101 core_message: add Behat test


commit bc11df440ef98fb25db448519e9590448d1e6fa6
Author: Mark Nelson <mdjnelson@gmail.com>
Date:   Tue, 18 Jun 2019 15:18:01 +0800
Tag:    v3.7.1

MDL-65101 core_message: 'canmessage' should trump 'requirescontract'