[gnome-documents] Update git submodules to latest versions

[Cosimo Cecchi <cosimoc src gnome org>]

commit f46ca06776a811dcc57b53d5f682175a2d7b3c65
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Feb 22 13:07:13 2013 -0500

    Update git submodules to latest versions

 egg-list-box |    2 +-
 libgd        |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/egg-list-box b/egg-list-box
index 491db4b..78851fd 160000
--- a/egg-list-box
+++ b/egg-list-box
@@ -1 +1 @@
-Subproject commit 491db4b5eb181f1e13b909644dfd0ad971231099
+Subproject commit 78851fd19a0d1ce23197e51c2611ed09b777fe10
diff --git a/libgd b/libgd
index fd5d7ee..c996fc2 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit fd5d7ee03b9d2f368e20cdc30f55a695b929cc80
+Subproject commit c996fc2cd05e47add5d17d30ca52b5bca50a86dd