[glom] window_main.glade: Actually use an ApplicationWindow.

[Murray Cumming <murrayc src gnome org>]

commit 985e7175a4ef193eb65d7edf5cab9c065c16f96a
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Oct 17 20:13:17 2013 +0200

    window_main.glade: Actually use an ApplicationWindow.
    
    * ui/operator/window_main.glade: I wonder why we didn't detect this
      problem in Gtk::Builder::get_widget<>().

 ui/operator/window_main.glade |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/ui/operator/window_main.glade b/ui/operator/window_main.glade
index dba3999..7280fcc 100644
--- a/ui/operator/window_main.glade
+++ b/ui/operator/window_main.glade
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.10 -->
-  <object class="GtkWindow" id="window_main">
+  <object class="GtkApplicationWindow" id="window_main">
     <property name="can_focus">False</property>
     <property name="title" translatable="yes">Glom</property>
     <property name="default_width">600</property>