Git commits in Moodle 3.6.6 by Mathew May

commit c8ac8de2c7f156cf71c2ac18651195cf39d3eb22
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Thu, 01 Aug 2019 14:38:45 +0800
Tag:    v3.6.6

MDL-50472 boost: Add maintenance message to the login page.

commit ecbd999ca3e1b786126bfe01a2617ae8647f67f1
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Wed, 31 Jul 2019 14:41:01 +0800
Tag:    v3.6.6

MDL-42451 installation: Add some Bootstrap classes for install

commit 11cfdfb1713c86f777cec5d67c377473524cdd55
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Tue, 23 Jul 2019 12:25:54 +0800
Tag:    v3.6.6

MDL-57342 admin: confightml will check if returned data is empty

commit 7c5d2ebc95acf8a79e07a88fe66f4f43245a148f
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Mon, 22 Jul 2019 12:41:24 +0800
Tag:    v3.6.6

MDL-50472 auth: Add maintenance message to the login page.

commit 5610176e3c618340979e1a198e218276a0b29717
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Fri, 19 Jul 2019 11:05:10 +0800
Tag:    v3.6.6

 MDL-50733 core: Update composer to updated behat-extension

commit 23aae2b6ea4f52a44201e2c7a464bf2fcf966da7
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Thu, 18 Jul 2019 10:47:18 +0800
Tag:    v3.6.6

MDL-65788 tool_policy: Move accept_policy JS call into an array

commit 35d3396f213ea3aeb14061c131078f96a90f659b
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Fri, 12 Jul 2019 09:59:44 +0800
Tag:    v3.6.6

MDL-65992 travis: Migrate to Xenial distro and default MySQL service

commit 28a27595e3989219d53ab777d47f403f47f16c71
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Tue, 25 Jun 2019 13:26:15 +0800
Tag:    v3.6.6

MDL-42451 installation: Allow enter key to proceed

commit bc68cb69ca902783ad2a547b4cf01a03656d9b9b
Author: Mathew May <mathewm@hotmail.co.nz>
Date:   Wed, 12 Jun 2019 15:24:48 +0800
Tag:    v3.6.6

MDL-65788 tool_policy: Prevent two modals rendering for guests.