[gnome-shell-extensions] Bump version to 3.31.90

[Florian Müllner <fmuellner src gnome org>]

commit a7ff9f401ea0d94f2cc1c566b1b62e76b193f591
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Feb 6 22:34:06 2019 +0100

    Bump version to 3.31.90
    
    Update NEWS.

 NEWS        | 10 ++++++++++
 meson.build |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 3042f83..829f2b3 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,13 @@
+3.31.90
+=======
+* Misc. bug fixes and cleanups [Florian; !49, !50, !51]
+
+Contributors:
+  Florian Müllner
+
+Translators:
+  Ryuta Fujii [ja], Charles Monzat [fr], Pieter Schalk Schoeman [af]
+
 3.31.2
 ======
 * Remove obsolete alternate-tab extension [Florian; #786496]
diff --git a/meson.build b/meson.build
index c320bc6..0115562 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gnome-shell-extensions',
-  version: '3.31.2',
+  version: '3.31.90',
   meson_version: '>= 0.44.0',
   license: 'GPL2+'
 )