Git commits in Moodle 3.7.x by Huong Nguyen

commit 79ec71c87b5c29ef8a0758e2ba9ee121fec10cbc
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Wed, 26 Jun 2019 15:57:02 +0800
Tag:    v3.7.2

MDL-64258 Group: Performance problem on the enrol group members page

commit 79a6ef4c9b8736921d303e1765d2fe3cd351b8fb
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Wed, 26 Jun 2019 15:19:51 +0800
Tag:    v3.7.2

MDL-64258 Group: Unit Test for find_users function

commit efef2efdd6beed7ba7bfe0c037c0d427fbe5cc7e
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Wed, 20 Feb 2019 16:13:40 +0800
Tag:    v3.7.0-beta

MDL-63937 autocomplete: Add the indicator when processing the request

commit 1f00fdb0d22007531ca81c6655ef19667667d5bc
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Tue, 27 Nov 2018 17:14:38 +0800
Tag:    v3.7.0-beta

MDL-63938 Enrolments: course_enrolment_manager method improvement