[gnome-calendar] Bump 3.21.4 release

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 4880c68347a4d67bc2209c59c83f2a320abbe059
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Jul 20 19:11:50 2016 -0300

    Bump 3.21.4 release

 NEWS         |   15 +++++++++++++++
 configure.ac |    2 +-
 2 files changed, 16 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 5586919..910db07 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,18 @@
+Major changes in 3.21.4:
+* Updated translations for:
+    * Arabic (Safa Alfulaij)
+    * Chinese (Taiwan) (Chao-Hsiung Liao)
+    * Friulian (Fabio Tomat)
+    * German (Christian Kirbach)
+    * Spanish (Daniel Mustieles)
+    * Slovak (Dušan Kazik)
+* Share the 'show-weekdate' with GNOME Shell
+* Fix issue in the calendar management dialog
+* Add support for alarms
+* Major updates on the edit dialog
+* Style fixes and updates (Lapo Calamandrei)
+* Fix year view popover positioning (Isaque Galdino)
+
 Major changes in 3.21.2:
 * Updated translations for:
     * Basque (Inaki Larranaga Murgoitio)
diff --git a/configure.ac b/configure.ac
index 3dfe4cd..e1b6a55 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl -*- mode: m4 -*-
 AC_PREREQ([2.69])
-AC_INIT([gnome-calendar],[3.21.2],[http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-calendar],[gnome-calendar],[https://wiki.gnome.org/Apps/Calendar])
+AC_INIT([gnome-calendar],[3.21.4],[http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-calendar],[gnome-calendar],[https://wiki.gnome.org/Apps/Calendar])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([src/main.c])