aqhome: use new type GWEN_ConnectableMsgEndpoint.

This allows for reconnect of endpoints if necessary.

aqhome/libtest.c

@@ -189,11 +189,6 @@ int testMqttConnection()
     return 2;
   }
   GWEN_MsgEndpointMgr_AddEndpoint(emgr, epTcp);
-  rv=GWEN_TcpcEndpoint_StartConnect(epTcp);
-  if (rv<0) {
-    DBG_ERROR(NULL, "Error starting connect (%d)", rv);
-    return 2;
-  }
 
   fprintf(stdout, "Sending CONNECT\n");
   msgOut=GWEN_ConnectMqttMsg_new("MQTT", 4, 0, 10, "CLIENTID123", NULL, NULL);