assorted pyflakes fixes I (re-)discovered pyflakes today and ran it over to roundup code to see what it had to say. It reported a ton of "imported module foo but you're not actually using it" warnings and a couple of actual errors that this patch fixes. The code was wrong but it was mostly stuff that never gets executed...like hyperdb.Choice.

This directory contains alternate front-ends for Roundup.

roundup.cgi
   This is a cgi-bin script.

ZRoundup
   This is a simple Zope frontend that installs as a regular Zope product.

See Roundup's doc/installation.txt for more info on installing these
frontends.