I actually don't remember what the RoomData's lua references where for,
but I'm pretty srue it wasn't this. I'll figure something out when I've
had a sleep.
I've changed some naming concentions in the lua APIs. I've also made a few
other tweaks, like region_pager_api.cpp delegating to the passed
RegionPager object. This won't explicitly run, becuase there's still a few
more changes needed.