[mutter] Bump version to 3.19.91

[Florian Müllner <fmuellner src gnome org>]

commit ceae5dceeabb2bac26cbda594b989743d4f60c10
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Mar 3 14:58:20 2016 +0100

    Bump version to 3.19.91
    
    Update NEWS.

 NEWS         |   17 +++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index a9c0b80..46f9be7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,20 @@
+3.19.91
+=======
+* Add --nested CLI argument to fix nested wayland session [Jonas; #758658]
+* Fix stack - scene graph stacking synchronization issues [Jonas; #755605]
+* Rate-limit last-device changes to fix freezes [Carlos; #753527]
+* Implement primary selection protocol [Carlos; #762560]
+* Misc. bug fixes [Carlos, Jonas; #762878, #762716]
+
+Contributors:
+  Jonas Ådahl, Carlos Garnacho, Tim Lunn
+
+Translations:
+  Piotr Drąg [pl], Artur de Aquino Morais [pt_BR], Marek Černocký [cs],
+  Cédric Valmary [oc], Mario Blättermann [de], Dušan Kazik [sk],
+  Fran Dieguez [gl], Aurimas Černius [lt], Daniel Mustieles [es],
+  Stas Solovey [ru], Yosef Or Boczko [he]
+
 3.19.90
 =======
 * Release buffer after processing commit [Ray; #761312, #761613]
diff --git a/configure.ac b/configure.ac
index ec93aca..ed15368 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], [19])
-m4_define([mutter_micro_version], [90])
+m4_define([mutter_micro_version], [91])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])