Modified Files:
        ** removed all "imports" of ZSI or ZSI.wstools, so wstools
        can be used independently by SOAPpy.

 	Namespaces.py
        -- added a namespace

        Utility.py
        -- moved ZSI.utility here, and the "Base" class for logging.

        WSDLTools.py
        -- added a "toDom" and "GetWSDL" methods to several classes,
        so now you can construct a WSDL instance and then call
        WSDL.toDom() --> DOM --> and create a WSDL file.

        __init__.py
        -- removed "Base" class for logging.

 Added Files:
 	c14n.py
        -- moved the c14n stuff from ZSI.compat here.

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