[gnome-chess] Stop the clock at the end of the game

[Michael Catanzaro <mcatanzaro src gnome org>]

commit d8b249f8bbab0f8efe3522d262a66548da5b4aec
Author: Michael Catanzaro <mike catanzaro gmail com>
Date:   Tue May 21 21:23:51 2013 -0500

    Stop the clock at the end of the game

 src/chess-game.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/chess-game.vala b/src/chess-game.vala
index e62aeb3..0bd80d6 100644
--- a/src/chess-game.vala
+++ b/src/chess-game.vala
@@ -1454,6 +1454,8 @@ public class ChessGame
         this.result = result;
         this.rule = rule;
         is_started = false;
+        if (_clock != null)
+            _clock.stop();
         ended ();
     }