patch applied (ghc-6.6/packages/filepath): LICENSE file added.

[Ian Lynagh]

Wed Mar 28 16:03:16 PDT 2007  Ian Lynagh <igloo at earth.li>
  * LICENSE file added.
  Same as Cabal's but with Neil Mitchell's name rather than Isaac's.
  Neil has agreed to this, of course  :-)

    A ./LICENSE