[gnome-control-center] mouse: fix touch support for the testing widget

[Ondrej Holy <oholy src gnome org>]

commit 0c5044609d26b8a55f1b64b272f2587925cc513b
Author: Ondrej Holy <oholy redhat com>
Date:   Thu Jan 30 16:28:15 2014 +0100

    mouse: fix touch support for the testing widget
    
    There is delay in response to tapping without GDK_BUTTON_RELEASE_MASK.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=723294

 panels/mouse/gnome-mouse-test.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/mouse/gnome-mouse-test.ui b/panels/mouse/gnome-mouse-test.ui
index 3652cb3..fe5084a 100644
--- a/panels/mouse/gnome-mouse-test.ui
+++ b/panels/mouse/gnome-mouse-test.ui
@@ -70,7 +70,7 @@
                         <property name="height_request">180</property>
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
-                        <property name="events">GDK_BUTTON_PRESS_MASK | GDK_STRUCTURE_MASK</property>
+                        <property name="events">GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | 
GDK_STRUCTURE_MASK</property>
                         <property name="margin_top">20</property>
                         <property name="margin_bottom">20</property>
                         <property name="hexpand">True</property>