[gnome-shell] Bump version to 3.17.90

[Florian Müllner <fmuellner src gnome org>]

commit 682bd7b6225a0f9c0dc75fe21091ffdcf5ce8204
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 20 13:51:24 2015 +0200

    Bump version to 3.17.90
    
    Update NEWS.

 NEWS         |   18 ++++++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 20 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index b8ba646..c1b2742 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,21 @@
+3.17.90
+=======
+* Avoid caret/focus viewport changes during pointer movement [Rui; #752138]
+* Match GTK+'s modal dialogs for system modal dialogs [Carlos; #746108]
+* Refine message list style [Florian; #749958]
+* Fix type-ahead behavior for backspace and compose key [Rui; #753319, #753320]
+* Refine the system status menu [Florian; #751377]
+* Misc. bug fixes and cleanups [Bastien, Ray, Florian, Jakub; #752779, #752739,
+  #741366, #651503, #753064, #753181, #752881]
+
+Contributors:
+  Rui Matos, Florian Müllner, Bastien Nocera, Carlos Soriano, Jakub Steiner,
+  Ray Strode, Rico Tzschichholz
+
+Translations:
+  Marek Černocký [cs], Kjartan Maraas [nb], Jordi Mas [ca], Muhammet Kara [tr],
+  Enrico Nicoletto [pt_BR]
+
 3.17.4
 ======
 * Fix fuzziness of app menu icon [Jakub; #747932]
diff --git a/configure.ac b/configure.ac
index 8322acb..3e265be 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell],[3.17.4],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
+AC_INIT([gnome-shell],[3.17.90],[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=3.17.4
+MUTTER_MIN_VERSION=3.17.90
 GTK_MIN_VERSION=3.15.0
 GIO_MIN_VERSION=2.45.3
 LIBECAL_MIN_VERSION=3.5.3