nasty hack around broken yum archive dependancy blockages

[seth vidal]

> The way my rawhide mirror works (mirror of a mirror), it would be nice
> if yum had a --update-what-you-can option. After a normal pass, it would
> just --exclude anything it reports as not upgradeable due to dependency
> issues and tries again until it succeeds. I don't know python but I may
> try to do a wrapper in perl...

Ok, 
 1. wrapping python programs in perl is simply DIRTY. Let's not do
that. 
 2. it's funny that the only reason people want this feature in yum is
b/c rawhide is so frequently dependency-incomplete. Kinda an odd
direction to follow for writing features.

-sv