[Python-Dev] Windows build - fixing compile warnings before VS2010

["Martin v. Löwis"]

> I just cut out around 100 warnings last night in 45 minutes, so I
> don't plan on having this take several months or anything. If I get
> stuck, I'll just give it up.

Would you mind posting a batch of these to the tracker? I'd like
to review them, just to be sure we have the same understanding.

Regards,
Martin