Psyco update

For those who don't know, Psyco is an Python extension module that can speed up your code significantly. (On some heavily computation-intensive code, I got a 5x-6x increase.)

I haven't taken a look at the Psyco home page for a while, but the good news is that it's now up to version 1.4. It also now handles Python functions that use local variables (like eval).