Changes by: Jason J. Hickey (jyh at cs.caltech.edu)
Date: 2007-06-13 12:07:43 -0700 (Wed, 13 Jun 2007)
Revision: 10950
Log message:

      Documenting the meanings of the qualifiers:
         private: statically scoped
         this: field in the current object
         public: global variable
         global: same as public
         protected:
            - in 0.9.8, same as "this."
            - in 0.9.9, local to the current file/object
                 this.protected.x = ...
                 global.protected.x = ...
              or, the correct qualifier is usually inferred
                 protected.x = ...