[gnome-shell] Bump version to 3.17.4

[Florian Müllner <fmuellner src gnome org>]

commit c2fa2cdd8a922a30540f9312c7f1149a5bfad2c6
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Jul 23 12:48:58 2015 +0200

    Bump version to 3.17.4
    
    Update NEWS.

 NEWS         |   16 ++++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 18 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 9df7dbf..b8ba646 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,19 @@
+3.17.4
+======
+* Fix fuzziness of app menu icon [Jakub; #747932]
+* Implement 4 finger swipe gesture for touchpads [Carlos; #752250]
+* Misc. bug fixes [Florian, Alexandre, Piotr, Ray, Mario; #751921, #659969,
+  #752438, #752675]
+
+Contributors:
+  Piotr Drąg, Alexandre Franke, Carlos Garnacho, Florian Müllner,
+  Mario Sanchez Prada, Jakub Steiner, Jasper St. Pierre, Ray Strode
+
+Translations:
+  Benjamin Steinwender [de], Pedro Albuquerque [pt], Fabio Tomat [fur],
+  Matej Urbančič [sl], Daniel Mustieles [es], Yosef Or Boczko [he],
+  Daniel Martinez [an]
+
 3.17.3
 ======
 * Handle touch events in OSK on wayland [Rui; #750287]
diff --git a/configure.ac b/configure.ac
index 99db7df..3c0c35f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell],[3.17.3],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
+AC_INIT([gnome-shell],[3.17.4],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([src/shell-global.c])
@@ -76,7 +76,7 @@ AC_MSG_RESULT($enable_systemd)
 CLUTTER_MIN_VERSION=1.21.5
 GOBJECT_INTROSPECTION_MIN_VERSION=0.10.1
 GJS_MIN_VERSION=1.39.0
-MUTTER_MIN_VERSION=3.17.3
+MUTTER_MIN_VERSION=3.17.4
 GTK_MIN_VERSION=3.15.0
 GIO_MIN_VERSION=2.45.3
 LIBECAL_MIN_VERSION=3.5.3