patch applied (cabal-install): Replace command line handling

[Duncan Coutts]

Sat Dec 15 11:46:03 PST 2007  Duncan Coutts <duncan at haskell.org>
  * Replace command line handling
  Use the new cabal command line handling infrastructure. Use proper flag types
  rather than strings. 
  Drop support for per-package command line flags as it was generally agreed to
  be confusing.

    M ./Hackage/Config.hs -24 +25
    M ./Hackage/Dependency.hs -28 +16
    M ./Hackage/Info.hs -2 +3
    M ./Hackage/Install.hs -73 +61
    M ./Hackage/Setup.hs -176 +129
    M ./Hackage/Types.hs -37 +15
    M ./Main.hs -28 +153
    M ./cabal-install.cabal -2 +2