slightly changes definition so that autovacuum works parallel safe too

Closes #540

See merge request !697

Add get_by_id to activity.ex

See merge request !695

[#502] Stats fix (users with nil or missing `info.deactivated` should be treated active)

Closes #502

See merge request !696

[#502] Fixed User.active_local_user_query to return users with nil or missing `info.deactivated`. Adjusted test.

Uploader callback controller

See merge request !694

Fix buggy test.

See merge request !693

Always override plug's default cache-control in reverse proxy

See merge request !692

[#530] Prevents user `info` from being overwritten because of race conditions

Closes #530

See merge request !691

DM sanitization

See merge request !458

and non-partial update of embed (in WebFinger.ensure_keys_present and other places).

Mix.Tasks.Pleroma.Instance: Generate signing_salt

Closes #533

See merge request !689

Closes: pleroma/pleroma#533

Send delete event over Mastodon streaming api

Closes #116

See merge request !688

Closes #116

Add a test to ensure #39 is fixed.

See merge request !687

update frontend

See merge request !686

I1t/pleroma 477 user search improvements

See merge request !685