1.01  2006-07-01

        * Artur Bergman backed out some changes seconds before I did
          the 1.00 release.  this puts them back in.

1.00  2006-07-01

        * the get-it-on-CPAN-finally release.  but forgot this changes
          entry.

0.30  2006-06-27

        * fix memory leak with sleepers list.  change it from list to hash
          so there can't be dups, as there were before, when a worker
          could do multiple functions.