[gitg] Add libgd submodule

[Ignacio Casal Quinteiro <icq src gnome org>]

commit cecd209e59e2cac4b68a4b9fb570e4a6f420d230
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Feb 14 11:27:58 2013 +0100

    Add libgd submodule

 .gitmodules |    3 +++
 libgd       |    1 +
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/.gitmodules b/.gitmodules
index e69de29..303eb9b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "libgd"]
+       path = libgd
+       url = ../libgd
diff --git a/libgd b/libgd
new file mode 160000
index 0000000..1098bdd
--- /dev/null
+++ b/libgd
@@ -0,0 +1 @@
+Subproject commit 1098bdd6835baf4cd0342eca686528024d6c0839