[mutter] Bump version to 3.33.90

[Florian Müllner <fmuellner src gnome org>]

commit 1b9672b5db3f1165f3ba50b5cb218989abe7422b
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Aug 9 21:35:49 2019 +0200

    Bump version to 3.33.90
    
    Update NEWS.

 NEWS        | 18 ++++++++++++++++++
 meson.build |  2 +-
 2 files changed, 19 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index aa41e4b55..d5640ae05 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,21 @@
+3.33.90
+=======
+* Fix visibility of clones with hidden source [Florian; #683]
+* Reduce freezes when opening some popup windows [Carlos; #556]
+* Be more thorough when excluding obscured areas from painting [Carlos; !698]
+* Make it possible to start Xwayland on demand [Carlos; !709]
+* clutter: Expose layout_manager to transitions [Florian; !716]
+* Misc. bug fixes and cleanups [Mark, Florian, Iain, Niels, Carlos, Ray; !671,
+  !691, !694, !696, !703, !707, !697, !710, !708, !714, #719, !721]
+
+Contributors:
+  Mark Blakeney, Carlos Garnacho, Niels De Graef, Iain Lane, Florian Müllner,
+  Ray Strode
+
+Translators:
+  Asier Sarasua Garmendia [eu], Rafael Fontenelle [pt_BR], Fabio Tomat [fur],
+  Florentina Mușat [ro]
+
 3.33.4
 ======
 * Discard page flip retries on hotplug [Jonas; !630]
diff --git a/meson.build b/meson.build
index 7e774c4d9..6ec758167 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('mutter', 'c',
-  version: '3.33.4',
+  version: '3.33.90',
   meson_version: '>= 0.50.0',
   license: 'GPLv2+'
 )