Diked out the in-game functions. ...

I'd basically have needed to implement a Turing-complete language for this
(isn't there a law about that?), so I've ditched the attempt and will offer
the same functionality via external Lisp functions.

Moved night-vision to new player attribute 'abilities'.

Implemented in-game functions. ...

Although they will probably still change significantly...
Also fixed a bug in the combat system.

First commit to the ATL branch. Started on the 'Monastery of Lugwey' world. ...

And doing some bug fixing as I go along.