[gnome-shell] Bump version to 3.21.3

[Florian Müllner <fmuellner src gnome org>]

commit a69a9ba51a53e4753ce1dcd298f810ab7f8d9dbd
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Jun 21 20:47:40 2016 +0200

    Bump version to 3.21.3
    
    Update NEWS.

 NEWS         |   14 ++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 93aef3b..0bfae92 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+3.21.3
+======
+ * Do not disable suspend action when locked [Florian; #725960]
+ * Remember input sources MRU list [Cosimo; #766826]
+ * networkAgent: Handle VPN service aliases [David; #658484]
+ * Plug a memory leak [Hans; #710230]
+
+Contributors:
+  Cosimo Cecchi, Florian Müllner, Hans Petter Jansson, David Woodhouse
+
+Translations:
+  Tiago Santos [pt], Cédric Valmary [oc], Muhammet Kara [tr],
+  Daniel Mustieles [es], Rafael Fontenelle [pt_BR]
+
 3.21.2
 ======
 * Fix sorting of hidden apps in app switcher [Florian; #766238]
diff --git a/configure.ac b/configure.ac
index 6e7a818..9dd9826 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell],[3.21.2],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
+AC_INIT([gnome-shell],[3.21.3],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
 AX_IS_RELEASE([git-directory])
 
 AC_CONFIG_HEADERS([config.h])
@@ -77,7 +77,7 @@ AC_MSG_RESULT($enable_systemd)
 CLUTTER_MIN_VERSION=1.21.5
 GOBJECT_INTROSPECTION_MIN_VERSION=1.45.4
 GJS_MIN_VERSION=1.39.0
-MUTTER_MIN_VERSION=3.21.2
+MUTTER_MIN_VERSION=3.21.3
 GTK_MIN_VERSION=3.15.0
 GIO_MIN_VERSION=2.45.3
 LIBECAL_MIN_VERSION=3.5.3