[polari] Bump version to 3.23.91

[Florian Müllner <fmuellner src gnome org>]

commit 41015f273fbc688c2ca8bc07a246ce281686696f
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Mar 2 17:03:38 2017 +0100

    Bump version to 3.23.91
    
    Update NEWS.

 NEWS         |   18 ++++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 19 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index ef6171f..e760f04 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,21 @@
+3.23.91 - "That's a Good-Looking Gun"
+=====================================
+* Bundle required Telepathy services in flatpak [Florian; #777705]
+* Support auth bots that use "login" instead of "identify" [Florian; #778841]
+* Misc. bug fixes [Florian, Alexander; #778793, #778797, #778850, #779449,
+  #771888]
+
+Contributors:
+  Alexander Alzate Olaya, Florian Müllner
+
+Translations:
+  Daniel Korostil [uk], Ask Hjorth Larsen [da], Bernd Homuth [de],
+  Chao-Hsiung Liao [zh_TW], Jiri Grönroos [fi], Anders Jonsson [sv],
+  Kukuh Syafaat [id], Piotr Drąg [pl], Milo Casagrande [it],
+  Rafael Fontenelle [pt_BR], Fran Dieguez [gl],
+  Мирослав Николић [sr, sr@latin], Balázs Meskó [hu], Aurimas Černius [lt],
+  Daniel Mustieles [es], Inaki Larranaga Murgoitio [eu]
+
 3.23.90 - "Get a Room!"
 =======================
 * Add spell check support to entry [Florian; #709956]
diff --git a/configure.ac b/configure.ac
index b44a2d3..01e42d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([polari],[3.23.90],[https://bugzilla.gnome.org/enter_bug.cgi?product=polari],[polari])
+AC_INIT([polari],[3.23.91],[https://bugzilla.gnome.org/enter_bug.cgi?product=polari],[polari])
 AX_IS_RELEASE([git-directory])
 
 AC_SUBST([APP_ID],[org.gnome.Polari])