Merge pull request #81 from euquiq/fix-gps-sim-exit-while-transmitting-freeze

GPS SIMULATOR EXIT ON PLAY FIX

firmware/application/apps/gps_sim_app.cpp

@@ -234,6 +234,8 @@ GpsSimAppView::~GpsSimAppView() {
 void GpsSimAppView::on_hide() {
 	// TODO: Terrible kludge because widget system doesn't notify Waterfall that
 	// it's being shown or hidden.
+	if( is_active() )
+		stop(false);
 	waterfall.on_hide();
 	View::on_hide();
 }