* 0.1 - initial release

 * 0.2

    Always use namespace href for internal lookup of types, not prefix.
    Support extended types
    Support import
    Support 'mixed' complexType
    Support default and fixed attribute values
    Check that 'maxOccurs=unbounded' is used only inside sequence element
    Removed 'Attr' prefix on attribute access methods

    Change in licensing:

      o Generated code is GPL, but also covered by the C++ Sockets Library 
        commercial license agreement.

      o The wsdl2cpp tool itself is still GPL only.