patch applied (cabal-install): Implement 'cabal unpack' command as in #390

[Duncan Coutts]

Thu Nov 13 10:59:23 PST 2008  Andrea Vezzosi <sanzhiyan at gmail.com>
  * Implement 'cabal unpack' command as in #390

    M ./Distribution/Client/Setup.hs +41
    A ./Distribution/Client/Unpack.hs
    M ./Main.hs +10

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20081113185923-cd449-0b93ad7fa2f2fc3cc1cbd104ef963c2f3588bb04.gz