Revision history for Set::Groups

0.1    2007-04-07
       First version, released on an unsuspecting world.
0.2    2007-04-08
       Documentation correction
0.4    2007-04-20
       Add the detection of the cyclic groups
       New methods are setDebug, getCyclicGroups, getAcyclicGroups and isAcyclic.
0.5    2007-04-22
       isGroupOf is renamed isOwnGroupOf, and a new method isGroupOf is created
       getGroupsOf is renamed getOwnGroupsOf, and a new method getGroupsOf is created
       For coherence :
           addSingleTo is renamed addOwnSingleTo (addSingleTo still exists, but is deprecated)
           addGroupTo is renamed addOwnGroupTo (addGroupTo still exists, but is deprecated) 
           removeGroupFrom is renamed removeOwnGroupFrom (removeGroupFrom still exists, but is deprecated)