[gnome-music/gnome-3-14] Update to latest libgd

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit f5dcc79c1165663f9d568865489cca573c864604
Author: Vadim Rutkovsky <vrutkovs redhat com>
Date:   Tue Nov 18 18:18:17 2014 +0100

    Update to latest libgd
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740329

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index ac4ae16..04b2480 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit ac4ae160ee92fcf7010d0d9420e6f71532627f80
+Subproject commit 04b2480259769709ec34d7ee48294878c94bbbb5