patch applied (cabal): Tarball index format support

[bjorn at bringert.net]

Wed Aug 16 15:35:09 PDT 2006  Paolo Martini <paolo at nemail.it>
  * Tarball index format support

    M ./Network/Hackage/CabalInstall/Fetch.hs -1 +13
    M ./Network/Hackage/CabalInstall/TarUtils.hs -2 +2
    M ./Network/Hackage/CabalInstall/Update.hs -6 +10
    M ./Network/Hackage/Client.hs -4 +46
    M ./cabal-install/etc-cabal-install/serv.list -1 +1