patch applied (cabal): Use Setup.hs like everyone else does

Thu Jan 31 03:59:53 PST 2008 Duncan Coutts * Use Setup.hs like everyone else does and note the issue about custom vs simple build-type for Cabal itself. ./Setup.lhs -> ./Setup.hs M ./DefaultSetup.hs -1 M ./Makefile -1 +1 M ./Setup.hs -7 +9