patch applied (cabal-branches/cabal-install-0.6): Backport VersionIntervals ADT from Cabal-1.7

Thu Jun 4 17:59:17 PDT 2009 Duncan Coutts * Backport VersionIntervals ADT from Cabal-1.7 A ./Distribution/Compat/Version.hs M ./cabal-install.cabal +1 View patch online: http://darcs.haskell.org/cabal-branches/cabal-install-0.6/_darcs/patches/200...