MT19937 random followup



> Concerning the CMUCL MT rng code, I have reimplemented the
> functions to output floating point numbers & wrote some
> little functions to get to the rng from Maxima.

Great. I've made it asdf-installable, written some documentation and
some simple benchmarking code, and made a Cliki page.

http://www.cliki.net/MT19937

Thanks for your work on this. If you find any bugs, please let me know
so I can update things.

-Peter