Git commits in Moodle 3.7.5 by Claude Vervoort

commit b3172cc0fde67d0eea41a61e015cd1168ddb3c4d
Author: Claude Vervoort <claude.vervoort@cengage.com>
Date:   Fri, 14 Feb 2020 04:19:48 +0800
Tag:    v3.7.5

MDL-67132 mod_lti: document new param


commit dc39cee4f99aaccdecc33aa20ac67ce3089e55c2
Author: Claude Vervoort <claude.vervoort@cengage.com>
Date:   Wed, 06 Nov 2019 00:09:51 +0800
Tag:    v3.7.5

MDL-67132 mod_lti: call grade api to trigger course total computation