simple-dup-finder going down

[Luis Villa <louie ximian com>]

So, I'm about to take down the old, functional simple-dup-finder and put
up a refactoring based on some of ben frantzdale's work. Caveat being
that it's probably broken, and I may run out of energy to fix it all
tonight (being as I can't work until stupid hours like 2am because then
I'll have to take a cab home.) So if it is broken tonight or tomorrow,
don't bother telling me :)

Luis