Git commits in Moodle 3.10.x by Matt Clarkson

commit adeaafd59dc8967aca9e795b083219d32494910f
Author: Matt Clarkson <mattc@catalyst.net.nz>
Date:   Fri, 23 Oct 2020 11:06:36 +0800
Tag:    v3.10.0-rc1

MDL-68722 atto_equation: fix for form elements with special characters

commit 7f5528991279bd58adc76f33ff37589fba94e5e9
Author: Matt Clarkson <mattc@catalyst.net.nz>
Date:   Wed, 08 Jul 2020 07:13:26 +0800
Tag:    v3.10.0-beta

MDL-67440 analytics: optimse delete's in clean up task.