patch applied (packages/directory): Use filepath rather than our own System.Directory.Internals

[Ian Lynagh]

Sat Jun 30 05:52:44 PDT 2007  Ian Lynagh <igloo at earth.li>
  * Use filepath rather than our own System.Directory.Internals

    R ./System/Directory/
    M ./System/Directory.hs -9 +20
    R ./System/Directory/Internals.hs
    M ./directory.cabal -1