* qt/qdbusconnection_p.h:

	* qt/qdbusconnection_p.h:
	* qt/qdbusmetaobject.cpp:
	* qt/qdbusmetaobject_p.h:
	* qt/qdbusintegrator.cpp: Use the new merged-interface mode
	for the dynamic meta object. No need to guess which
	interface to call.
	* qt/qdbusabstractinterface_p.h:
	* qt/qdbusconnection.cpp:
	* qt/qdbusintegrator.cpp:
	* qt/qdbusinterface.cpp:
	* qt/qdbusinterface.h: Make findInterface always return a non-null pointer.
	Add a QDBusRef that looks and behaves like DCOPRef.