A bit more work on MQTT support. It can actually connect to an MQTT broker now.

connections/canconfactory.cpp

@@ -2,6 +2,7 @@
 #include "canconfactory.h"
 #include "serialbusconnection.h"
 #include "gvretserial.h"
+#include "mqtt_bus.h"
 
 using namespace CANCon;
 
@@ -14,6 +15,8 @@ CANConnection* CanConFactory::create(type pType, QString pPortName, QString pDri
         return new GVRetSerial(pPortName, false);
     case REMOTE:
         return new GVRetSerial(pPortName, true);  //it's a special case of GVRET connected over TCP/IP so it uses the same class
+    case MQTT:
+        return new MQTT_BUS(pPortName);
     default: {}
     }