[five-or-more] Created tag 3.31.90

[Robert Roth <robertroth src gnome org>]

The unsigned tag '3.31.90' was created.

Tagger: Robert Roth <robert roth bee-tf ro>
Date: 1549305364 +0200

    Tagged release 3.31.90

Changes since the last tag '3.31.2':

Anders Jonsson (3):
      Update Swedish translation
      Update Swedish translation
      Update Swedish translation

Andre Klapper (1):
      User docs: Remove unhelpful image of color chooser (adds no value)

Balázs Úr (3):
      Update Hungarian translation
      Update Hungarian translation
      Update Hungarian translation

Bilal Elmoussaoui (5):
      Meson: add tests to validate destkop/appdata files
      Appdata: update the appdata per the latest specs
      Gitlab CI: setup flatpak nightlies
      Flatpak: fix flatpak manifest
      Flatpak: use master Sdk

Bjørn Lie (1):
      Remove figures/color-dots.png from meson.build The file was deleted during the rewrite. Fixes build of 
help files.

Carmen Bianca BAKKER (1):
      Update Esperanto translation

Daniel Mustieles (3):
      Updated Spanish translation
      Updated Spanish translation
      Updated Spanish translation

Daniel Șerbănescu (1):
      Update Romanian translation

Fabio Tomat (2):
      Update Friulian translation
      Update Friulian translation

Fran Dieguez (1):
      Update Galician translation

Jeremy Bicha (2):
      primary-menu: Add F10 accelerator to open menu
      primary-menu: Add mnemonics

Kukuh Syafaat (1):
      Update Indonesian translation

Matej Urbančič (1):
      Updated Slovenian translation

Pieter Schalk Schoeman (1):
      Update Afrikaans translation

Piotr Drąg (1):
      Update Polish translation

Robert Roth (1):
      Prepared release 3.31.90

Tom Tryfonidis (1):
      Update Greek translation