patch applied (cabal-install): Refactor installLocalPackage and installRepoPackages

[Duncan Coutts]

Wed May  7 11:01:08 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Refactor installLocalPackage and installRepoPackages
  They share most code so pull the first and last bits out into the
  top level install function. They now need 2 and 3 fewer params
  respectively, which is a good sign. Rename them because they're
  generating plans now rather than doing the installation directly.

    M ./Hackage/Install.hs -59 +48

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20080507180108-adfee-63c047da8b3782ae8b14c0360d134be3accb8c78.gz