added return codes. Try to publish. If it fails, run MQTT init and publish again. Increased Keep Alive timeout to make sure it is greater than the flow interval

code/components/jomjol_flowcontroll/ClassFlowMQTT.h

@@ -15,6 +15,7 @@ protected:
     std::string user, password; 
     int SetRetainFlag;
     bool MQTTenable;
+    int keepAlive;
 
     std::string maintopic, mainerrortopic; 
 	void SetInitialParameter(void);