Joint work with Greg Steuck.
ghc and the hs-packages now simply include the necessary (haskell) package description files in lib/ghc/package.conf.d and update the package.cache by running ghc-pkg recache at the end. register and unregister scripts are no longer needed.
Haskell 98 natural numbers. ok sthen@ (will be hooked to the build during the ghc update)