Ignore broken state/auth events in RespState/RespSendJoin (#225)
Ignore broken state/auth events in RespState/RespSendJoin (#225)

* Don't give up if we fail to get a single unnecessary auth event

* Update returned errors

* Don't error on missing events when calling RespState.Events()
matrix-org/gomatrixserverlib,matrix-org/gomatrixserverlib