* Remove mention of lt-cred-mech in the sample coturn config.

See https://github.com/coturn/coturn/pull/262

 for more context.
Also clean up some minor formatting issues while I'm here.

* Add changelog.

Signed-off-by: Krithin Sitaram <krithin@gmail.com>

Allow for the creation of a support user.

A support user can access the server, join rooms, interact with other users, but does not appear in the user directory nor does it contribute to monthly active user limits.

* Some words about garbage collections and logcontexts

* Do a GC after each test to fix logcontext leaks

This feels like an awful hack, but...

* changelog

People keep asking why their database hasn't gotten smaller after using this API.

Signed-off-by: Aaron Raimist <aaron@raim.ist>

So people can still collect consent the old way if they want to.

Presumably this is the intention anyways. I've also updated the domain part to be something more along the lines of what people might expect.

Also indent all of them with 4 spaces.

They still can't reject invites, but we let them leave it.

probably should have done this in the first place, like @turt2live suggested.

fixes #3260

Hopefully there are enough comments and docs in this that it makes sense on its
own.

We aren't ready to release this yet, so I'm reverting it for now.

This reverts commit d1679a4e, reversing
changes made to e089100c.

Fixes https://github.com/matrix-org/synapse/issues/3018



Signed-off-by: Travis Ralston <travpc@gmail.com>

Signed-off-by: Travis Ralston <travpc@gmail.com>

clarify that `purge_history` will not purge state

All the others are code blocks, so this one should be to (currently it is a blockquote).

Signed-off-by: Travis Ralston <travpc@gmail.com>