Git commits in Moodle 3.5.6 by Amaia Anabitarte

commit 3751ec0e68f842dc00541ec81d8c677496b2984a
Author: Amaia Anabitarte <amaia@moodle.com>
Date:   Tue, 26 Mar 2019 23:03:26 +0800
Tag:    v3.5.6

MDL-63137 mod_feedback: PHPUnit tests for new userid parameter

commit 596aa22c4e451125d22b5a523e2c93b2b0e6a544
Author: Amaia Anabitarte <amaia@moodle.com>
Date:   Tue, 26 Mar 2019 20:46:35 +0800
Tag:    v3.5.6

MDL-63137 mod_feedback: Pointing TODO tasks to right deprecation issue

commit 5a93c6c9abd1e99c4466fa83164529ed294ae359
Author: Amaia Anabitarte <amaia@moodle.com>
Date:   Tue, 26 Mar 2019 00:59:09 +0800
Tag:    v3.5.6

MDL-63137 mod_feedback: mod_feedback_core_calendar_provide_event_action