New AI for Mobs

[xoft]

I'd love to, but there's always something else that I need to do first - make ProtoProxy compile undex *nix, change the underlying crypto library (so that we can do SSL / HTTPS that we need for 1.7 auth), then a mysterious deadlock, then even more mysterious protocol parsing errors, next, the 1.7 protocol auth, then fix the Gallery plugin, then set up the Gallery server...