Merge branch 't3509-merge-to-main-repo'
Merge branch 't3513-hidden-to-deleted-message'
Merge branch 't3513-hidden-to-deleted-message'
(refs #3512) Stop sending message if the member is blocked.
(refs #3512) [API] Stop sending message if the member is blocked.
Merge branch 't3512-check-accessblock-in-smf' of github.com:ShinichiU/opMessagePlugin into t-3512