Fix ConnectionListener for player leave

src/de/steamwar/misslewars/listener/ConnectionListener.java

@@ -49,7 +49,7 @@ public class ConnectionListener extends BasicListener{
 		MWTeam.removeInvitations(e.getPlayer());
 		MissileWars.leave(e.getPlayer());
 
-		if (Bukkit.getOnlinePlayers().isEmpty()) {
+		if (Bukkit.getOnlinePlayers().isEmpty() || (Bukkit.getOnlinePlayers().contains(e.getPlayer()) && Bukkit.getOnlinePlayers().size() == 1)) {
 			Bukkit.shutdown();
 		}
 	}

src/de/steamwar/misslewars/listener/WaitingListener.java

@@ -34,9 +34,10 @@ public class WaitingListener extends BasicListener {
 
 	@EventHandler
 	public void onDisconnect(PlayerQuitEvent e){
-		if(Bukkit.getOnlinePlayers().isEmpty())
+		if (Bukkit.getOnlinePlayers().isEmpty() || (Bukkit.getOnlinePlayers().contains(e.getPlayer()) && Bukkit.getOnlinePlayers().size() == 1)) {
 			Bukkit.shutdown();
 		}
+	}
 
 	@EventHandler
 	public void onDamage(EntityDamageEvent e){