Fix javadoc.

workspace/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/habitat/docs/ListenerInformationDoc.java

@@ -24,7 +24,7 @@ public final class ListenerInformationDoc extends ListenerDoc {
      * Constructor.
      * 
      * @param date the date
-     * @param callSign the listener call sign
+     * @param receiver the HAB receiver
      */
     public ListenerInformationDoc(Date date, HabReceiver receiver) {
         super("listener_information", date);

workspace/ttnhabbridge/src/main/java/nl/sikken/bertrik/hab/ttn/TtnListener.java

@@ -50,7 +50,7 @@ public final class TtnListener {
     /**
      * Starts this module.
      * 
-     * @throws MqttException 
+     * @throws MqttException in case something went wrong with MQTT 
      */
     public void start() throws MqttException {
         LOG.info("Starting TTN listener");