* Add method for calculating the room state after a list of events
* Fill out AddsState and RemovesState fields in the output event
* comment on return value
* Fix whitespace
* Clarify the meaning of LastEventIDSent
* Be more explicit on what the snapshot is
* Fix comments
* Comment on why we want the state after the previous events
* Marshal and Unmarshal methods for roomserver input api
* Comments for why we don't json.marshal the InputRoomEvent directly
* More comments
* s/m.room.create/the first event/