Revision history for Set-Functional

0.01    Date/time
        First version, released on an unsuspecting world.
1.0     2013-02-28/12:00:00
        - added predicates
        - added benchmark scripts
        - partitioned tests for easier maintenance
1.01    2013-09-04/1:00:00
        - fixed metacpan resources
        - cleaned up documentation
1.02    2013-09-04/1:00:00
        - fixed metacpan resources
        - cleaned up documentation
1.03    2014-10-23/15:30:00
        - cartesian now returns no sets if any of the provided sets are empty
