Aim: Provide Lua hooks to allow writing a Tetrinet bot.

I've been looking for an excuse to hack something together with Lua
(http://www.lua.org) for a while. Hence this (unfinished) bot.
Hopefully more people find out about this amazing language package.

Due to time constraints the path finding algrorithm could not be
completed, so I've fallen back on the simple algorithm.

Mark Pulford <mark@kyne.com.au>
