Git commits in Moodle 3.11.0 by Adrian Greeve

commit ffe3fa8ea8cfae5dee060bc7c25e49331e00f2e0
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Fri, 30 Apr 2021 13:00:21 +0800
Tag:    v3.11.0-beta

MDL-71051 profilefield_datetime: Fix to missing required param.

commit bdd7f0a77c260bfd617427a34d0f212f73a6930f
Author: abgreeve <adrian@moodle.com>
Date:   Thu, 22 Apr 2021 10:05:04 +0800
Tag:    v3.11.0-beta

MDL-28452 profilefield_social: Setting the version number to today.

commit 285011017ca36882794d7b83f20fa1a991f2a7de
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Tue, 06 Apr 2021 15:24:00 +0800
Tag:    v3.11.0-beta

MDL-70817 lib: Update the install xml file to use the correct length.

commit e7c47b194c89f4c33515855a8eedb65ba1f9acc8
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Tue, 09 Feb 2021 09:32:32 +0800
Tag:    v3.11.0-beta

MDL-70828 performance: Allow session locking issue to be turned off.