HsColour integration (patch)

[Roberto Zunino]

I am sending a patch[1] for integrating Cabal and HsColour + Haddock.

Here is the result of running it on the base package:
http://www.di.unipi.it/~zunino/tmp/base/index.html

The above was generated by
./Setup configure
./Setup haddock --hscolour=hscolour.css

Requirements: HsColour >=1.8, my hscolour.css file[2] (or your own, of
course!), darcs Haddock + a link-breaking-bug fix (already sent) + any
version bump (required: haddock > 0.8).

Enjoy,
Zun.

[1] http://www.di.unipi.it/~zunino/tmp/cabal-hscolour-20070530
[2] http://www.di.unipi.it/~zunino/tmp/hscolour-emacs.css