Cleanups
Cleanups

 - drop namespace::clean
 - sanity-check args in ->mesh()
 - POD cleanups

	modified:   lib/List/Objects/WithUtils/Role/Array.pm
	modified:   lib/List/Objects/WithUtils/Role/Hash.pm
	modified:   lib/List/Objects/WithUtils/Role/WithJunctions.pm
test that mesh() dies
v1.001001

  Sanity check ->mesh() arguments.
  Other minor cleanups.