Git commits in Moodle 3.7.2 by Mark Nelson

commit c5fb5d69b1ed533b7595a2ae8f623256208494f2
Author: Mark Nelson <mdjnelson@gmail.com>
Date:   Tue, 09 Jul 2019 09:14:15 +0800
Tag:    v3.7.2

MDL-56835 report_participation: remove unreachable if condition


commit af281ecdd6383b37cf965e19903d864c7f1f91fe
Author: Mark Nelson <mdjnelson@gmail.com>
Date:   Wed, 26 Jun 2019 14:06:12 +0800
Tag:    v3.7.2

MDL-56835 report_participation: initialise action variables


commit d92119979c7b962c40147c0e8c68ede7dc816ea9
Author: Mark Nelson <mdjnelson@gmail.com>
Date:   Tue, 25 Jun 2019 20:15:20 +0800
Tag:    v3.7.2

MDL-56835 report_participation: use course timecreated as minlog