Merge branch 'mr/20190122-activity-visibility-update' into 'develop'
authorhref <href+git-pleroma@random.sh>
Tue, 22 Jan 2019 16:10:38 +0000 (16:10 +0000)
committerhref <href+git-pleroma@random.sh>
Tue, 22 Jan 2019 16:10:38 +0000 (16:10 +0000)
slightly changes definition so that autovacuum works parallel safe too

Closes #540

See merge request pleroma/pleroma!697


Trivial merge