added the logic for server shutdown

Projekte/mdga/model/src/main/java/pp/mdga/client/ClientGameLogic.java

@@ -1,5 +1,6 @@
 package pp.mdga.client;
 
+import pp.mdga.Resources;
 import pp.mdga.game.BonusCard;
 import pp.mdga.game.Color;
 import pp.mdga.game.Game;
@@ -398,7 +399,11 @@ public void received(ServerStartGameMessage msg) {
      * @param msg the SelectTSK message received.
      */
     @Override
-    public void received(ShutdownMessage msg) {state.received(msg);}
+    public void received(ShutdownMessage msg) {
+        addNotification(new InfoNotification(Resources.stringLookup("server.shutdown")));
+        addNotification(new StartDialogNotification());
+        setState(dialogsState);
+    }
 
     /**
      * Handles a IncorrectRequest message received from the server.

Projekte/mdga/model/src/main/resources/mdga.properties

@@ -1,4 +1,5 @@
 lobby.deny.join=The lobby is already full.
+server.shutdown=The server has shut down.
 
 incorrect.request.0=The selected TSK is already occupied.
 incorrect.request.1=No TSK is available for selection.

Projekte/mdga/model/src/main/resources/mdga_de.properties

@@ -1,4 +1,5 @@
 lobby.deny.join=Die Lobby ist bereits voll.
+server.shutdown=Der Server wurde heruntergefahren.
 
 incorrect.request.1=Die ausgewählte TSK ist bereits belegt.
 incorrect.request.2=Es gibt keine freie TSK mehr, welche ausgewählt werden kann.