* qt/qdbusinterface.h: Rename QDBusRef to QDBusInterfacePtr

    * qt/qdbusinterface.h: Rename QDBusRef to QDBusInterfacePtr
        and disable the copy operators. (r533772, r534746)

        * qt/qdbuserror.h: Remove the automatic cast to
          bool. (r533929)

        * qt/qdbusabstractinterface.cpp:
        * qt/qdbusabstractinterface.h: Change the default call mode to
        not use the event loop. Add convenience call() methods that
        take a CallMode parameter. (r534042)

        * qt/qdbusconnection.h: Change the default call mode to not
        use the event loop. (r534042)

        * qt/qdbusinterface.cpp:
        * qt/qdbusinterface.h: Add a method to tell us if the
        interface is valid (since we don't return a null pointer
        anymore) (r534099)

        * qt/qdbusinterface_p.h: Don't crash if metaObject is 0
        (r534101)

        * qt/qdbusinternalfilters.cpp: Decouple the introspection
        function in two so taht we get the chance to introspect
        without having a QDBusMessage (r534102)

        * qt/qdbusbus.h:
        * qt/qdbusconnection.cpp:
        * qt/qdbusconnection_p.h:
        * qt/qdbusintegrator.cpp: Keep a list of our own names to
        avoid a round-trip to the server when attempting to introspect
        one of our own objects. Also make sure the filter functions
        match the empty interface as well. (r534108)
        Don't keep the connection names. Instead, trust the unique
        connection name (r534111)
        Remove event loop usage (r534112)