[gnome-software] Revert an unintentional change

[Matthias Clasen <matthiasc src gnome org>]

commit 52101cdf18cda3adba01d11b5a58aeddf20ba6bf
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Aug 29 18:53:15 2013 -0400

    Revert an unintentional change

 src/gnome-software.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gnome-software.ui b/src/gnome-software.ui
index 7fd23c4..585b737 100644
--- a/src/gnome-software.ui
+++ b/src/gnome-software.ui
@@ -12,7 +12,7 @@
       <column type="gchararray"/>
     </columns>
   </object>
-  <object class="GtkWindow" id="window_software">
+  <object class="GtkApplicationWindow" id="window_software">
     <property name="can_focus">False</property>
     <property name="default-width">1200</property>
     <property name="default-height">800</property>