more stable connexion

app/src/main/java/network/server/Server.java

@@ -49,6 +49,7 @@ public class Server {
 		this.acceptThread.cancel();
 		this.logicThread.cancel();
 		for (ServerConnexion connexion : this.connexions) {
+			connexion.nukeConnection();
 			connexion.close();
 		}
 	}

app/src/main/java/network/server/ServerConnexion.java

@@ -33,7 +33,7 @@ public class ServerConnexion extends Connexion {
 
 	public void nukeConnection() {
 		if (player != null) {
-			sendPacket(new DisconnectPacket("Server stopped"));
+			sendPacket(new DisconnectPacket("Le serveur a été fermé !"));
 			this.server.broadcastPacket(new PlayerLeavePacket(player.getId()));
 			this.server.getGame().removePlayer(player.getId());
 		}