Add the missing Q_DISABLE_COPY for public bearer classes.

QNetworkConfigurationManager and QNetworkSession are QObject, which
should not be thought of as values that can be copied or assigned, but
as unique identities.

Change-Id: I6ff0124a613862c2b411da2df31f03d5033315a9
Reviewed-by: Jonas Gastal <jgastal@profusion.mobi>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Reviewed-by: Peter Hartmann <peter.hartmann@nokia.com>

src/network/bearer/qnetworkconfigmanager.h

@@ -90,6 +90,9 @@ Q_SIGNALS:
     void configurationChanged(const QNetworkConfiguration &config);
     void onlineStateChanged(bool isOnline);
     void updateCompleted();
+
+private:
+    Q_DISABLE_COPY(QNetworkConfigurationManager)
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QNetworkConfigurationManager::Capabilities)

src/network/bearer/qnetworksession.h

@@ -129,6 +129,7 @@ protected:
     virtual void disconnectNotify(const char *signal);
 
 private:
+    Q_DISABLE_COPY(QNetworkSession)
     friend class QNetworkSessionPrivate;
     QNetworkSessionPrivate *d;
 };