message: add note on poor encapsulation in Node
diff: @@ -262,11 +262,16 @@ namespace ospray {
  virtual bool isValid();
  - // protected:
  -
  virtual bool computeValid();
  virtual bool computeValidMinMax();
  + // NOTE(jda) - This needs to be enabled, BAD to have Node users poking
  + // around in data members! Ideally this should be 'private',
  + // but that's a more minor concern...
  +#if 0
  + protected:
  +#endif
  +
  struct
  {
  std::string name;
  