[glade] Add GTK_POLICY_EXTERNAL

[Matthias Clasen <matthiasc src gnome org>]

commit ffe425069ed564777d4ba3250b98d1c6ae816adb
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 18 10:34:05 2015 -0500

    Add GTK_POLICY_EXTERNAL
    
    This value has been added to the GtkPolicyType enum in 3.16.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=758290

 plugins/gtk+/gtk+.xml.in |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/plugins/gtk+/gtk+.xml.in b/plugins/gtk+/gtk+.xml.in
index 9f33514..3748e7f 100644
--- a/plugins/gtk+/gtk+.xml.in
+++ b/plugins/gtk+/gtk+.xml.in
@@ -3055,6 +3055,8 @@
               <value id="GTK_POLICY_AUTOMATIC" _name="Automatic"/>
               <!-- GtkPolicyType enumeration value -->
               <value id="GTK_POLICY_NEVER" _name="Never"/>
+              <!-- GtkPolicyType enumeration value -->
+              <value id="GTK_POLICY_EXTERNAL" _name="External"/>
             </displayable-values>
           </property>
           <property id="vscrollbar-policy" default="GTK_POLICY_AUTOMATIC" custom-layout="True"/>