[gnome-photos/wip/rishi/flowbox: 1/3] Update to latest libgd

[Debarshi Ray <debarshir src gnome org>]

commit 7d2edea5f6f5dfbcc69294b55c67ab1fbdeb40b9
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Dec 2 10:46:31 2016 +0100

    Update to latest libgd
    
    Gives us GdMainBox.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=690623

 configure.ac |    1 +
 libgd        |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index de4deca..226d73b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -110,6 +110,7 @@ PKG_CHECK_MODULES(TRACKER, [tracker-control-1.0 tracker-sparql-1.0])
 AX_REQUIRE_DEFINED([LIBGD_INIT])
 LIBGD_INIT([
   gtk-hacks
+  main-box
   main-icon-view
   main-view
   static
diff --git a/libgd b/libgd
index a6f2d75..72a8dbb 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit a6f2d754203582adedb2a5a896a31ce5b73e05d1
+Subproject commit 72a8dbbc0461a96624ca5288fe0cda9832c457a7