darcs patch: Fix fix for #224.

26 Apr 2008

      Sat Apr 26 18:45:37 CEST 2008  Thomas Schilling 
  * Fix fix for #224.

  Changing from list of Dependencies to Maps resulted in the wrong Monoid 
  instance being used.  I'd still like to be able to run a test suite on 
  this but that'd require a lot more work to do properly...