[swell-foop] 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: 1549304105 +0200

    Tagged release 3.31.90

Changes since the last tag '3.31.1':

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

Balázs Úr (1):
      Update Hungarian translation

Bilal Elmoussaoui (2):
      Gitlab CI: set up flatpak nightly
      Meson: add tests to validate the desktop/appdata filse

Daniel Mustieles (2):
      Updated Spanish translation
      Updated Spanish translation

Daniel Șerbănescu (1):
      Update Romanian translation

Efstathios Iosifidis (1):
      Update Greek translation

Fabio Tomat (1):
      Update Friulian translation

Fran Dieguez (1):
      Update Galician translation

Julien Humbert (1):
      Update French translation

Kukuh Syafaat (1):
      Update Indonesian translation

Marek Cernocky (1):
      Updated Czech translation

Matej Urbančič (1):
      Added Slovenian translation

Piotr Drąg (2):
      Update POTFILES.in
      Update Polish translation

Robert Roth (2):
      Removed unnecessary rename directives from flatpak manifest
      Prepared release 3.31.90