[mutter] Bump version to 3.17.90

[Florian Müllner <fmuellner src gnome org>]

commit 637be80c86996353176644e8527f6f06a4a7a084
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 20 11:58:17 2015 +0200

    Bump version to 3.17.90
    
    Update NEWS.

 NEWS         |   15 +++++++++++++++
 configure.ac |    2 +-
 2 files changed, 16 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 50eccdf..2428bf5 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,18 @@
+3.17.90
+=======
+* Fix glitch with some fullscreen apps [Rui; #753020]
+* Fix screen update issue with NVidia driver [Aaron, Rui; #728464]
+* Only call frame callbacks for surfaces that get drawn [Adel; #739163]
+* Misc. bug fixes and cleanups [Jonas, Rui, Ting-Wei; #753222, #752753, #753237,
+  #753380, #744104, #744932]
+
+Contributors:
+  Jonas Ådahl, Adel Gadllah, Carlos Garnacho, Ting-Wei Lan, Rui Matos,
+  Florian Müllner, Aaron Plattner, Jasper St. Pierre
+
+Translations:
+  Akom Chotiphantawanon [th]
+
 3.17.4
 ======
 * nested: Allow basic configuration of dummy outputs [Jonas; #747089]
diff --git a/configure.ac b/configure.ac
index 382c0e4..80d2278 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ(2.62)
 
 m4_define([mutter_major_version], [3])
 m4_define([mutter_minor_version], [17])
-m4_define([mutter_micro_version], [4])
+m4_define([mutter_micro_version], [90])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])