
WISHLIST

o enhance hash value output in print, str with something more 
  meaningful as was done with dot.proto.  

o some way to display contents of proto similar to as.list but
  displaying more meaningful names as per last point.

o some way to display all objects in a proto including all
  inherited objects

o expand dot.proto into UML or UML-like diagrams

o reference card

o S4 vs. proto lexicon

