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/cookiemanager.h

@@ -21,14 +21,17 @@
 
 namespace BlackCore
 {
+    class CApplication;
+
     /*!
-     * Centralized cookie manager,
-     * which allows thread safe sharing of cookies
+     * Cookie manager, which allows thread safe sharing of cookies
      */
-    class BLACKCORE_EXPORT CCookieManager : QNetworkCookieJar
+    class BLACKCORE_EXPORT CCookieManager : public QNetworkCookieJar
     {
         Q_OBJECT
 
+        friend class CApplication;
+
     public:
         //! cookiesForUrl::setCookiesFromUrl
         //! \threadsafe
@@ -58,19 +61,10 @@ namespace BlackCore
         //! \threadsafe
         virtual bool updateCookie(const QNetworkCookie &cookie) override;
 
-        //! Our central access manager
-        static CCookieManager *instance();
-
-        //! Set the central instance to the given access manager
-        static void setToAccessManager(QNetworkAccessManager *manager);
-
     private:
         //! Constructor
         CCookieManager(QObject *parent = nullptr);
 
-        //! Reset the parent, required when CookieManager is set to QNetworkAccessManager
-        static void resetParent();
-
         mutable QReadWriteLock m_lock { QReadWriteLock::Recursive };
     };