There is some missing character creation/unloading code, and there are a
few other issues highlighted by TODO tags, see below.
In general, 'mapIndex' has been renamed to 'roomIndex'. Multiple rooms
have not been fully implemented yet, but I'm working on it.
Other issues:
* FileFormat needs to be changed to MapLoader
* Server's character movement is still slaved to the clients
The client does not build.
I've replaced the BBox class with a pair of inline functions in
check_bounds.hpp. I've also renamed the 'position' variable to 'origin' in
several locations.
These changes are mostly to alleviate ambiguity.