[empathy] Fix preferences with modern gtk+

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 389f01f85c8d0fb904552764a1f54533cc3fa5be
Author: Giovanni Campagna <scampa giovanni gmail com>
Date:   Tue Mar 3 00:55:54 2015 -0800

    Fix preferences with modern gtk+
    
    Set the scrolled windows to expand so that they cover the entire
    preference window vertically.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=745504

 src/empathy-preferences.ui |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-preferences.ui b/src/empathy-preferences.ui
index a8015ac..b3a829a 100644
--- a/src/empathy-preferences.ui
+++ b/src/empathy-preferences.ui
@@ -545,6 +545,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="shadow_type">in</property>
+                    <property name="vexpand">True</property>
                     <child>
                       <object class="GtkTreeView" id="treeview_sounds">
                         <property name="visible">True</property>
@@ -881,6 +882,7 @@
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <property name="shadow_type">in</property>
+                        <property name="vexpand">True</property>
                         <child>
                           <object class="GtkTreeView" id="treeview_spell_checker">
                             <property name="visible">True</property>