Release of unix 2.4.0.0

[Don Stewart]

dons:
> Vasili Galchin did a release of a new version of the unix library. 
> 
>     http://hackage.haskell.org/cgi-bin/hackage-scripts/package/unix-2.4.0.0
> 
> Hmm :(
> 
> This is a core package, maintained by libraries@, so shouldn't be being
> uploaded to hackage by 3rd parties.
> 
> What can we do?

It's also been pointed out that the darcs version of the unix package is
2.2, while the version on hackage is 2.3.

with cabal install now able to auto-grab the latest thing named 'unix'
this is a little concerning.

-- Don