patch applied (cabal): Rewrite the Makefile and build the user-guide using xsltproc like ghc does

Mon Feb 4 09:26:34 PST 2008 Duncan Coutts <duncan@haskell.org> * Rewrite the Makefile and build the user-guide using xsltproc like ghc does M ./Makefile -148 +83 A ./doc/fptools.css