Git commits in Moodle 3.6.2 by Mark Nelson

commit fd12e12d8c582245b18ca4ee74c59408d89c8ff3
Author: Mark Nelson <markn@moodle.com>
Date:   Thu, 13 Dec 2018 12:01:05 +0800
Tag:    v3.6.2

MDL-64229 core_message: ensure profile pic links to profile


commit 0ccc7a8a5c5420f522f2ff8553098069865b4d8f
Author: Mark Nelson <markn@moodle.com>
Date:   Tue, 11 Dec 2018 14:22:40 +0800
Tag:    v3.6.2

MDL-64357 ltiservice_gradebookservices: updated unit tests


commit 54fc0f1b2878a8e0e4035123de483c559aca2604
Author: Mark Nelson <markn@moodle.com>
Date:   Tue, 04 Dec 2018 09:35:44 +0800
Tag:    v3.6.2

MDL-64309 core_message: minor string changes to drawer