[mutter] Bump version to 3.33.91

[Florian Müllner <fmuellner src gnome org>]

commit bdc7cc8ab9a7bcf55e5257796aa16d3f3ea9f4c8
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Aug 21 19:16:03 2019 +0000

    Bump version to 3.33.91
    
    Update NEWS.

 NEWS        | 21 +++++++++++++++++++++
 meson.build |  2 +-
 2 files changed, 22 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index d5640ae05..ab6658bd2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,24 @@
+3.33.91
+=======
+* Fix primary selection copy and paste between X11 and wayland [Hans; #702]
+* Improve monitor hotplug support [Hans; !713]
+* Remove a source of frame skips [Daniel; !719]
+* Fix windows being lowered after unmaximizing with double click [Olivier; #88]
+* Remove Clutter API for global grabs [Jonas D.; !536]
+* Improve processing of incompressible events [Daniel; !711]
+* Add xdg-output v3 support [Olivier; !704]
+* Misc. bug fixes and cleanups [Jonas Å., Marco, Carlos, Adam, Albert, Niels,
+  Olivier, Florian; !722, !385, !728, !726, !500, !731, !727, !700, !735, !738]
+
+Contributors:
+  Jonas Ådahl, Albert Vaca Cintora, Jonas Dreßler, Olivier Fourdan,
+  Carlos Garnacho, Hans de Goede, Niels De Graef, Adam Jackson, Florian Müllner,
+  Marco Trevisan (Treviño), Daniel van Vugt
+
+Translators:
+  Asier Sarasua Garmendia [eu], Kukuh Syafaat [id], Florentina Mușat [ro],
+  Aurimas Černius [lt], Daniel Mustieles [es]
+
 3.33.90
 =======
 * Fix visibility of clones with hidden source [Florian; #683]
diff --git a/meson.build b/meson.build
index 940e79a24..b76ce915b 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('mutter', 'c',
-  version: '3.33.90',
+  version: '3.33.91',
   meson_version: '>= 0.50.0',
   license: 'GPLv2+'
 )