[hyena] Expose ImageButton Spacing property

[Gabriel Burt <gburt src gnome org>]

commit c016f10085163538f62d0efaadf389f6c3644985
Author: Gabriel Burt <gabriel burt gmail com>
Date:   Mon May 17 14:52:00 2010 -0700

    Expose ImageButton Spacing property

 src/Hyena.Gui/Hyena.Widgets/ImageButton.cs |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/Hyena.Gui/Hyena.Widgets/ImageButton.cs b/src/Hyena.Gui/Hyena.Widgets/ImageButton.cs
index 9431b0a..5daa522 100644
--- a/src/Hyena.Gui/Hyena.Widgets/ImageButton.cs
+++ b/src/Hyena.Gui/Hyena.Widgets/ImageButton.cs
@@ -45,6 +45,11 @@ namespace Hyena.Widgets
             set { hbox.BorderWidth = value; }
         }
 
+        public int Spacing {
+            get { return hbox.Spacing; }
+            set { hbox.Spacing = value; }
+        }
+
         public ImageButton (string text, string iconName) : this (text, iconName, Gtk.IconSize.Button)
         {
         }