libpng for 7.x

[seth vidal]

> Ouch. That seem like a recipe for disaster. What if RH would, out of the
> blue, decide to actually release an official update to something we thought
> was completely out of maintenance? Not likely to happen with 7.x, but maybe
> one or two RHL9 updates will still trickle out. I think Seth's choice of not
> touching the base RH package's version number is a better policy choice --
> largely _because_ there is no upstream constant method. Instead, we should
> leave whatever they do alone, and add after that.

Red hat knows that fedora legacy exists. If they pull anything like that
for a 7.x release then I will feel very very justified in smacking the
packager in question.


-sv