adding default constructor, copy() & set() method, deprecated merge() replaced with union() (TODO: intersect)
adding default constructor, copy() & set() method, deprecated merge() replaced with union() (TODO: intersect)

--HG--
branch : toxiclibs

ruby-processing/toxiclibs,postspectacular/toxiclibs,postspectacular/toxiclibs,rekii/toxiclibs,rekii/toxiclibs