[gnome-tetravex] Add margin to the bottom of the grid

[Michael Catanzaro <mcatanzaro src gnome org>]

commit eb19687516be5f73e8afb92f815326c132d51f62
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sat Feb 15 11:54:23 2014 -0600

    Add margin to the bottom of the grid

 src/gnome-tetravex.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-tetravex.vala b/src/gnome-tetravex.vala
index 5273abf..5adce94 100644
--- a/src/gnome-tetravex.vala
+++ b/src/gnome-tetravex.vala
@@ -99,6 +99,7 @@ public class Tetravex : Gtk.Application
         window.set_titlebar (headerbar);
 
         var grid = builder.get_object ("grid") as Gtk.Grid;
+        grid.margin_bottom = 20;
 
         view = new PuzzleView ();
         view.hexpand = true;