publish version when online and subjects constitution improvment

OpenMQTTGateway.ino

@@ -92,6 +92,8 @@ boolean reconnect() {
       trc(F("Connected to broker"));
     // Once connected, publish an announcement...
       client.publish(will_Topic,Gateway_AnnouncementMsg,will_Retain);
+      // publish version
+      client.publish(version_Topic,VERSION,will_Retain);
       //Subscribing to topic
       if (client.subscribe(subjectMQTTtoX)) {
         #ifdef ZgatewayRF

User_config.h

@@ -28,15 +28,16 @@
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-
+/*-------------------VERSION----------------------*/
+#define VERSION "0.5"
 /*-------------DEFINE YOUR NETWORK PARAMETERS BELOW----------------*/
 //MQTT Parameters definition
 #define mqtt_server "192.168.1.17"
 //#define mqtt_user "your_username" // not compulsory only if your broker needs authentication
 #define mqtt_password "your_password" // not compulsory only if your broker needs authentication
 #define mqtt_port 1883
-#define Gateway_Name "OpenMQTTGateway"
-#define will_Topic "home/OpenMQTTGateway/LWT"
+#define version_Topic "home/" Gateway_Name "/version"
+#define will_Topic "home/" Gateway_Name "/LWT"
 #define will_QoS 0
 #define will_Retain true
 #define will_Message "Offline"