wxruby users - Nov 2003 - New code checked in

I just checked in some nifty changes from Nick, including:

     Added NULL_PEN and NULL_BRUSH

     Added alt_down, control_down, shift_down, meta_down
	methods to MouseEvent

     Added support for returning subclasses of wxWindow''s that are not
     yet wxruby objects. To do this, I added a wxpp type (DYNAMIC) that
     calls wxRbTypeTable, which invokes the proper ruby wrapper. This can
     probably be expanded for dynamic conversions of most wxObject based
     objects.

     Added support for XRC. It is left off in extconf.rb by default for
     now. Currently the names for some of the methods are really lame
     (load_dialog_subclass) and I don''t mind if they change.
     This requires the dynamic return types change dr

     Added the ''paint'' method to Window, which creates a DC,
passes it
     to a yield method, and then destroys it.

Let me know if anything broke!

Kevin