refs #602, CWebDataServices and CCookieManager now part of CApplication

* New hint flag: DB data for the client will no longer be web loaded but fetched from cache whenever possible
* No public constructors for the 2 classes
* adjusted main

src/blackcore/contextnetworkimpl.h

@@ -238,7 +238,6 @@ namespace BlackCore
     private:
         CAirspaceMonitor              *m_airspace = nullptr;
         INetwork                      *m_network  = nullptr;
-        CWebDataServices              *m_webDataReader = nullptr;                //!< web service readers
         QList<QMetaObject::Connection> m_webReaderSignalConnections;
         INetwork::ConnectionStatus     m_currentStatus = INetwork::Disconnected; //!< used to detect pending connections
         QTimer                        *m_networkDataUpdateTimer = nullptr;       //!< general updates such as ATIS, frequencies, see requestDataUpdates()