Git commits in Moodle 3.6.x by Andreas Grabs

commit 3b1d619bafbf50a21fb0029cc006af1e36f4b66b
Author: Andreas Grabs <moodle@grabs-edv.de>
Date:   Wed, 26 Jun 2019 04:04:14 +0800
Tag:    v3.6.7

MDL-66009 mod_feedback: Nested dependency fails again

commit bc7a35db6a8ee50b7f1917be92637663577f20cd
Author: Andreas Grabs <moodle@grabs-edv.de>
Date:   Fri, 24 May 2019 03:32:14 +0800
Tag:    v3.6.5

MDL-65703 core_calendar: fix user event type filtering logic