* (30 Jun 2006) Foo.find now knows :on => time_point, :overlapping => t1 .. t2, :contained_by => t1 .. t2, :contain => t1 .. t2

 * (19 Jun 2006) Miscellaneous documentation updates.  At some point the name was changed to acts_as_range.

 * (15 May 2006)
 port acts as paranoid to acts_as_end_dateable for centerstone usage.