[gnome-shell] Bump version to 3.1.91

[Owen Taylor <otaylor src gnome org>]

commit 7ddaa8968ab9c278c5410202dd2b6d3786550f16
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Sep 6 18:05:32 2011 -0400

    Bump version to 3.1.91
    
    Update NEWS

 NEWS         |   27 +++++++++++++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 28 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 71e7ea3..fce30bf 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,30 @@
+3.1.91
+======
+
+* Fix problem with applications vanishing from alt-Tab when
+  desktop files change. [Colin; #657990]
+* Fix interaction of on-screen keyboard with run-dialog and
+  Looking Glass console [Dan; #657986]
+* Add public API for adding and removing search providers
+  [Philippe; #657548, #658113]
+* Allow changing IM status with scroll wheel [Florian; #657973]
+* Limit volume slider to 100% [Bastien; #657607]
+* Change "Do Not Disturb" to "Notifications" in user menu [Florian; #652718]
+* Switch browser in default favorites to Epiphany [Colin; #650616]
+* Misc bug fixes [Dan, Florian, Jasper, Marc-Antoine, Rui;
+  #649631, #655069, #656142, #657703, #657759, #658007, #658065, #658176]
+
+Contributors:
+ Rui Matos, Florian MÃllner, Philippe Normand, Marc-Antoine Perennou,
+ Jasper St. Pierre, Colin Walters, Dan Winship
+
+Translations:
+ Ihar Hrachyshka [be], Mario BlÃttermann [de], Kris Thomsen [da],
+ Jorge GonzÃlez [es], Arash Mousavi [fa], Fran Dieguez [gl],
+ Takayuki Kusano [ja],Aurimas Äernius [lt], Kjartan Maraas [nb], A S Alam [pa],
+ Stas Solovey [ru], Daniel Nylander [se], Tirumurti Vasudevan [ta],
+ Chao-Hsiung Liao [zh_HK, zh_TW]
+
 3.1.90.1
 ========
 
diff --git a/configure.ac b/configure.ac
index 2593cf6..b8f3b9e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.63)
-AC_INIT([gnome-shell],[3.1.90.1],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
+AC_INIT([gnome-shell],[3.1.91],[https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-shell],[gnome-shell])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([src/shell-global.c])