Return the value of the given attribute string as defined in the receiver.
Note: When switching to a full class representation for VRML objects we can
get rid of this and use actual accessors.
Answer a name for the receiver. This is used generically in the title of certain inspectors, such as the referred-to inspector, and specificially by various subsystems. By default, we let the object just print itself out..
Private. Answer a Dictionary with the receiver's events or nil if no
events have been registered. Subclasses may overwrite this method
for performance reasons.