As a follow up of #533 and also detected during #538 #524 tasks, fixed 2 more issues/bugs

* only call this->abandonAndWait() when not in main thread (also slack discussion MS/KB)
* make sure web data service start to read even if setup reader signal was missed
* add timestamp to setupreader to detect "recently read" in case signal is missed

src/blackmisc/threadedreader.h

@@ -30,21 +30,25 @@ namespace BlackMisc
     class BLACKMISC_EXPORT CThreadedReader : public CContinuousWorker
     {
     public:
+        //! Destructor
+        virtual ~CThreadedReader();
+
         //! Thread safe, set update timestamp
         //! \threadsafe
         QDateTime getUpdateTimestamp() const;
 
         //! Thread safe, set update timestamp
         //! \threadsafe
-        void setUpdateTimestamp(const QDateTime &updateTimestamp);
+        void setUpdateTimestamp(const QDateTime &updateTimestamp = QDateTime::currentDateTimeUtc());
+
+        //! Was setup read within last xx milliseconds
+        //! \threadsafe
+        bool updatedWithinLastMs(qint64 timeLastMs);
 
         //! Request new reading
         //! \note override as required, default is to call initialize()
         virtual void requestReload();
 
-        //! Destructor
-        virtual ~CThreadedReader();
-
         //! Set the update time
         //! \param updatePeriodMs <=0 stops the timer
         //! \threadsafe