[gnome-control-center] libgd: Update to fix GdNotification theming

[Bastien Nocera <hadess src gnome org>]

commit 3a2606ea80b41b2b2955ae9f665dd8c99503252f
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Sep 3 13:14:12 2014 +0200

    libgd: Update to fix GdNotification theming
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735680

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 94b9ec5..2899de0 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 94b9ec5aa2ab42981397c4e39bff676273c495ec
+Subproject commit 2899de073fdc2af496f5c9d7d9b108fbe15f0ddc