Altering "varargs" (remove|retain)AllKeys in Jaggregate
As with the analogous
jaggregate.Collection methods, I've modified the
removeAllKeys( K... ) and
retainAllKeys( K... ) methods to have parameter list
( K ), and added overloads that have parameter list
( K, K... ), to avoid big confusion when programs hand zero args to the varargs versions of the method. This and the previous modifications will show up in version 2.