#260 Use Tile ID for "No Teleport In" Rather than Entire Maps

[AntumDeluge]

I think it would be better to use a tile ID to mark areas where players should not be able to teleport into rather than blocking off an entire map. In some cases it is necessary to block the entire map (dreamscape, hell), so maybe it would be a good idea the leave the old method and just add tile IDs as an option.