[baobab] Revert back to a previous version of libgd

[Paolo Borelli <pborelli src gnome org>]

commit fd30f3331af94105fc3e5d3ef32531394df5a01c
Author: Paolo Borelli <pborelli gnome org>
Date:   Sun Jan 13 21:09:05 2013 +0100

    Revert back to a previous version of libgd
    
    The latest version does not pass distcheck

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 680a9f7..a0289c6 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 680a9f72a0c3019cf4013ed026270ee7b9f1abc9
+Subproject commit a0289c6a12fdc7043099d250dc9daefd1f63203e