close hibernate session when removing a game. shouldn't have to explicitly do it but why not

src/net/socialgamer/cah/data/Game.java

@@ -274,6 +274,7 @@ public class Game {
       }
       // this seems terrible
       if (players.size() == 0) {
+        hibernateSession.close();
         gameManager.destroyGame(id);
       }
       if (players.size() < 3 && state != GameState.LOBBY) {