Git commits in Moodle 3.7.x by Brendan Cox

commit d8a7e1f78d8c5ab49bcdf1f334b316837791a28a
Author: Brendan Cox <brendan.cox@totaralearning.com>
Date:   Thu, 28 Jun 2018 19:58:25 +0800
Tag:    v3.7.0-beta

MDL-62702 core_lib: parameters in POST override other LTI values