Refactored define commands, started integrating monsters into the game world.

A lot of refactoring and code cleanup... ...

Still to be done: remove all those (eval) expressions.

Some refactoring in world/game-object, expanded commandline parameter parsing.

Did some planning on how to proceed from here, started on the networking module.

Refactored game command system, added 'player' command. ...

Version 0.1 is now ready - ATL files are parsed properly, the world
and the player are created, and the player can move around inside
the world. The first stage of a long journey is hereby completed!
:-)

Finished the 'goto', 'place' and 'help' commands. ...

I noticed that the code is starting to look quite crufty - time
for a clean up, I think...

Started implementing in-game commands, expanded test world.

Finally got create-player working.

Wrote create-player (though still buggy)

Saved a lot of code by writing build-symbol, started on client module.