Zombie update

[Christian Reiniger <reiniger@rz.uni-wuerzburg.de>]

Bert, I think the Zombie entry should also have a direct link to the
"Programming Guide"
(http://infa.abo.fi/~chakie/zombie/docs/programming/book1.html), as this
doc includes some simple example code - very good to get a first
impression of what it´s like.


	Christian

PS: Game coders: If you´re planning to add multiplayer support to your
game, have a look at Zombie. Using it will both save you a good amount
of work and give your game greater flexibility