[iagno] Clean up some application-scope fields

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 7ccb610186f144e68162b1f22b507b9e938e7b7a
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sat Jan 25 12:02:35 2014 -0600

    Clean up some application-scope fields

 src/iagno.vala |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/src/iagno.vala b/src/iagno.vala
index 2a81d0e..099f166 100644
--- a/src/iagno.vala
+++ b/src/iagno.vala
@@ -10,17 +10,16 @@
 
 public class Iagno : Gtk.Application
 {
-    private static bool fast_mode;
-
     /* Application settings */
     private Settings settings;
+    private bool is_fullscreen;
+    private bool is_maximized;
+    private static bool fast_mode;
 
     /* Widgets */
     private Gtk.Window window;
     private int window_width;
     private int window_height;
-    private bool is_fullscreen;
-    private bool is_maximized;
     private GameView view;
     private Gtk.Button new_game_button;
     private Gtk.Label dark_active_image;
@@ -29,7 +28,6 @@ public class Iagno : Gtk.Application
     private Gtk.Label light_active_image;
     private Gtk.Label light_score_label;
     private Gtk.Label light_score_image;
-    private SimpleAction undo_action;
 
     /* Light computer player (if there is one) */
     private ComputerPlayer? light_computer = null;
@@ -57,7 +55,6 @@ public class Iagno : Gtk.Application
     {
         base.startup ();
         add_action_entries (app_actions, this);
-        undo_action = lookup_action ("undo-move") as SimpleAction;
     }
 
     public Iagno ()
@@ -247,6 +244,7 @@ public class Iagno : Gtk.Application
 
     private void update_ui ()
     {
+        var undo_action = (SimpleAction) lookup_action ("undo-move");
         /* Can't undo when running two computer players */
         if (light_computer != null && dark_computer != null)
             undo_action.set_enabled (false);