* Add comment
* gb vendor update github.com/matrix-org/gomatrixserverlib
* Add handler for the exchange_third_party_invite endpoint
* Doc
* Use SendEvents to send the invite to the roomserver
* Add missing error check
* Add checks
* Fix response to /invite to match the format expected by synapse
* gb vendor update github.com/matrix-org/gomatrixserverlib
* Use gomatrixserverlib.RespInvite
* gb vendor update github.com/matrix-org/gomatrixserverlib