Added Piglet's and Kanga's houses. ...

Also removed obsolete code from the Lugwey world.

Redesigned 'abilities' feature, changed license to GPL. ...

Also various bug fixes and code annotations. License change due to
my use of CLISP external functions.

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'.

A large expansion of Lugwey, coupled with some minor bug fixes.

Added concept of darkness. ...

Also various bugfixes.

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

And doing some bug fixing as I go along.