Some Web readers adjustemnts

* do not init shared URLs before needed
* do not load info objects when DB is unavailable
* adjust reader flags when DB is down
* airport URL available in setup

src/blackcore/db/databasereaderconfig.h

@@ -53,6 +53,9 @@ namespace BlackCore
             //! Supported modes
             BlackMisc::Db::CDbFlags::DataRetrievalMode getRetrievalMode() const;
 
+            //! DB is down
+            void markAsDbDown();
+
             //! Timeout
             void setCacheLifetime(const BlackMisc::PhysicalQuantities::CTime &time);
 
@@ -91,6 +94,9 @@ namespace BlackCore
             //! FInd first one matching given
             CDatabaseReaderConfig findFirstOrDefaultForEntity(const BlackMisc::Network::CEntityFlags::Entity entities) const;
 
+            //! DB is down
+            void markAsDbDown();
+
             //! Update lifetimes
             void setCacheLifetimes(const BlackMisc::PhysicalQuantities::CTime &time);