* Comment out updaters a bit, add overwrite flag to latest events
* Make sure we don't send fast-forwarded state changes over federation, start with empty set when overwriting
* Remove redundant check for overwrite
* Start converting v1 invite endpoint to v2
* Update gomatrixserverlib
* Early federationsender code for sending invites
* Sending invites sorta happens now
* Populate invite request with stripped state
* Remodel a bit, don't reflect received invites
* Handle invite_room_state
* Handle room versions a bit better
* Update gomatrixserverlib
* Tweak order in destinationQueue.next
* Revert check in processMessage
* Tweak federation sender destination queue code a bit
* Add comments
