Add a status "Waiting for request..." when state is STANDBY

src/Controller.cpp

@@ -235,7 +235,11 @@ void Controller::compute_state_status()
                 }
                 else
                 {
-                    set_state(m_acquisition->get_state());
+					Tango::DevState state = m_acquisition->get_state();
+                    set_state(state);
+					if(state == Tango::STANDBY)
+						set_status("Waiting for request ...");
+					else
 						set_status(m_acquisition->get_status());
                 }
             }