patch applied (cabal-install): Add back separate user and global sets of install dirs

[Duncan Coutts]

Thu Aug 21 18:57:02 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add back separate user and global sets of install dirs
  The user install setting selects between the two sets of dirs.
  At the moment it's just the "user-" and "global-" prefixed field
  names to support existing config files.

    M ./Distribution/Client/Config.hs -46 +152
    M ./Main.hs -5 +8

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20080822015702-adfee-cf689348da9a9258184208c2f1fd2f43112fb336.gz