Obsolete functions or functions that can be simplified.

[kinkayd]

Merge Rooms : No longer necessary, since the hash from gmcp.room.info positively identifies a room, no need to merge rooms, since different rooms will have different hashes and thus different room ID's.

function set_room : At the end of this functions, an onMoveMap event is raised... yet you have no handler to handle the event. Is this an event handled by the mapper that I haven't found?

function check_room(...) : Since rooms are positively identified by a hash, why do you check against room name and exits? Big issue I have with this, is that some rooms have exits that are not obvious. Once I use said exit, the exit is created, and thus this function no longer identifies a perfectly valid room and won't show you being in that room.