[Fedora-haskell-list] Packaging guidelines and macros update

["Bryan O'Sullivan" <bos serpentine com>]

I've got an outline of the new documentation process here:

https://fedoraproject.org/wiki/PackagingDrafts/Haskell#Documentation

I also did a drive-by update of some other parts of that page, but
it's somewhat out of date compared to the hacking that Jens and I have
been doing lately.

The rawhide and F-10 branches of ghc should have all the right magic
for packages to be able to follow the new auto-update Haddock model,
and I've attached a shiny new spec file to
https://bugzilla.redhat.com/show_bug.cgi?id=425882 that shows how this
works in practice with the ghc-zlib package.

For better or worse, all packages will have to be updated to follow
this scheme. For ghc's F-9 branch, I've already fixed the macros file,
but I'll leave it to Jens to incorporate the other changes that are
needed to the ghc spec file.