[vala] gobject: Add Binding.unbind

[Luca Bruno <lucabru src gnome org>]

commit c72f0ce11f641f30ef334aaa43d925f480692375
Author: Luca Bruno <lucabru src gnome org>
Date:   Sat May 31 12:59:04 2014 +0200

    gobject: Add Binding.unbind
    
    Fixes bug 730967

 vapi/gobject-2.0.vapi |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/vapi/gobject-2.0.vapi b/vapi/gobject-2.0.vapi
index bf5b6d7..b0c0229 100644
--- a/vapi/gobject-2.0.vapi
+++ b/vapi/gobject-2.0.vapi
@@ -314,6 +314,7 @@ namespace GLib {
                public weak GLib.Object target { get; }
                public string target_property { get; }
                public GLib.BindingFlags flags { get; }
+               public void unbind ();
        }
 
        [CCode (has_target = false)]