Modified Files:
 	Utility.py
        -- created a new func "basejoin" for python2.3, because python2.3
        and python2.4 have different implementations(python2.3 is broke in
        it's handling of current directory ./ ).

        WSDLTools.py
        -- fixed problem with wsdl:imports in WSDLTools.load, need to
        _import all <wsdl:import>'s then check again if any <wsdl:import>'s
        were added to main document and do again and again.  Also fixed
        problem with assigning base locations to these <wsdl:import>'s.
        -- Remove all <wsdl:import>'s after they have been processed, or
        deemed to be redundant.
        -- grab basejoin from wstools.Utility

        XMLSchema.py
        -- grab basejoin from wstools.Utility


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