Git commits in Moodle 3.7.6 by Michael Hawkins

commit 1187f828b79d3319ee7a1b788dd6928bc97d9fb0
Author: Michael Hawkins <michaelh@moodle.com>
Date:   Thu, 27 Feb 2020 13:16:00 +0800
Tag:    v3.7.6

MDL-68061 gradereport_history: Restrict per page config value to int