Bindings to set activity_id and bundle_id hints

sugar/_sugarext.override

@@ -5,6 +5,7 @@ headers
 
 #include "pygobject.h"
 #include "sugar-address-entry.h"
+#include "sugar-x11-util.h"
 #include "xdgmime.h"
 
 #include <pygtk/pygtk.h>
@@ -14,6 +15,7 @@ headers
 modulename _sugarext
 %%
 import gtk.Entry as PyGtkEntry_Type
+import gtk.gdk.Window as PyGdkWindow_Type
 %%
 ignore-glob
   *_get_type