Forgot to add the custom mode part of the heartbeat message.

Also updated all the units for the heartbeat values that are exposed to the realtime plotter to follow the suggestions laid out by the documentation for valueChanged().

src/uas/UAS.cc

@@ -287,8 +287,9 @@ void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
 			// so the Ground Time checkbox must be ticked for these values to display
             quint64 time = getUnixTime();
 			QString name = QString("M%1:HEARTBEAT.%2").arg(message.sysid);
-			emit valueChanged(uasId, name.arg("base_mode"), "none", state.base_mode, time);
-			emit valueChanged(uasId, name.arg("system_status"), "none", state.system_status, time);
+			emit valueChanged(uasId, name.arg("base_mode"), "bits", state.base_mode, time);
+			emit valueChanged(uasId, name.arg("custom_mode"), "bits", state.custom_mode, time);
+			emit valueChanged(uasId, name.arg("system_status"), "-", state.system_status, time);
 			
             // Set new type if it has changed
             if (this->type != state.type)