Git commits in Moodle 3.6.2 by Ryan Wyllie

commit 67db9af9dbd2dfe3175cd96bd242864775bd2a65
Author: Ryan Wyllie <ryan@moodle.com>
Date:   Thu, 06 Dec 2018 15:24:41 +0800
Tag:    v3.6.2

MDL-64275 message: fix update unread conversation counts


commit ea2f42bde4503caf0e445a283f2f2fda4144e397
Author: Ryan Wyllie <ryan@moodle.com>
Date:   Thu, 06 Dec 2018 14:51:20 +0800
Tag:    v3.6.2

MDL-64043 message: stop group conversation header re-rendering


commit e7691f15b9975a11c7edb9c055dd5adc17180d0c
Author: Ryan Wyllie <ryan@moodle.com>
Date:   Thu, 29 Nov 2018 15:03:35 +0800
Tag:    v3.6.2

MDL-64274 message: deleteMessages in message_repository return promise