[polari] Bump version to 3.31.90

[Florian Müllner <fmuellner src gnome org>]

commit afc5ca438326d7943dba70c264c5edccb677bc7e
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Feb 7 14:30:15 2019 +0100

    Bump version to 3.31.90
    
    Update NEWS.

 NEWS        | 14 ++++++++++++++
 meson.build |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 7ed8b14..fa1e6a7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+3.31.90 — “Rimming a Snowman”
+=============================
+* Update app icon [Tobias; !78]
+* Turn "Run in Background" into a regular setting [Florian; #89]
+* Remove app menu [Florian; !53]
+* Misc. bug fixes and cleanups [Florian, Bilal; !79, !81, !87]
+
+Contributors:
+  Tobias Bernard, Jeremy Bicha, Bloomraptor, Bilal Elmoussaoui, Florian Müllner
+
+Translators:
+  Charles Monzat [fr], Pieter Schalk Schoeman [af], Ryuta Fujii [ja],
+  Balázs Úr [hu]
+
 3.30.2 — “Mind the Sheep, Not Eat Them”
 =======================================
 * Fix regression with predefined networks [Florian; #82]
diff --git a/meson.build b/meson.build
index 7c45933..5b847cc 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('polari', 'c',
-  version: '3.30.2',
+  version: '3.31.90',
   meson_version: '>= 0.43.0',
   license: 'GPL2+'
 )