[gnome-sudoku/gnome-3-20] Prepare 3.20.4

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 41a8a6e68edd3d1ab14da9a9bc16f94920197580
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Wed Jul 13 17:28:26 2016 -0500

    Prepare 3.20.4

 NEWS         |    5 +++++
 configure.ac |    2 +-
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 0038d3c..43bec07 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+3.20.4 - July 13, 2016
+======================
+
+* Avoid accidental use of C++ 11
+
 3.20.3 - July 11, 2016
 ======================
 
diff --git a/configure.ac b/configure.ac
index 89ed878..e1ee7a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ([2.63])
-AC_INIT([GNOME Sudoku], [3.20.3], [https://bugzilla.gnome.org/],
+AC_INIT([GNOME Sudoku], [3.20.4], [https://bugzilla.gnome.org/],
         [gnome-sudoku], [https://wiki.gnome.org/Apps/Sudoku])
 AC_CONFIG_MACRO_DIR([m4])