[gnome-shell] Created tag 3.31.91

[Florian Müllner <fmuellner src gnome org>]

The signed tag '3.31.91' was created.

Tagger: Florian Müllner <fmuellner gnome org>
Date: 1550779722 +0100

    Tag release 3.31.91

Changes since the last tag '3.31.90':

Alan Mortensen (1):
      Updated Danish translation

Anders Jonsson (1):
      Update Swedish translation

Andrea Azzarone (1):
      shellDBus: Add grabFlags parameter

Arnaud Bonatti (3):
      Change Iagno renamed desktop id.
      Add the 2048 renamed desktop id.
      Add a Taquin renamed desktop id.

Baurzhan Muftakhidinov (1):
      Update Kazakh translation

Florian Müllner (13):
      cleanup: Clean up unused imports
      cleanup: Use destructuring for imports from GI
      lookingGlass: Include St in default imports instead of Gtk
      popupMenu: Respect items' :can-focus property
      keyboard: Make items in language menu unfocusable
      userWidget: Add back missing import
      aggregateMenu: Don't use system menu for width computation
      system: Always use default avatar in switch-user submenu
      texture-cache: Use content size for returned images
      Clean out some eclipse artefacts
      calendar: Load interface description from resource
      ctrlAltTab: Fix more fallout from ES6 classes
      Bump version to 3.31.91

Fran Dieguez (1):
      Update Galician translation

Gun Chleoc (2):
      Update Scottish Gaelic translation
      Update Scottish Gaelic translation

Jiri Grönroos (1):
      Update Finnish translation

Jonas Dreßler (1):
      windowManager: Only allow top-drag gesture if focus window is fullscreen

Jonas Ådahl (2):
      README.md: Add contribution section
      gitlab-ci.yml: Add check for issue or MR URL

Jordi Mas (1):
      Update Catalan translation

Kukuh Syafaat (1):
      Update Indonesian translation

Marek Cernocky (1):
      Updated Czech translation

Matej Urbančič (1):
      Updated Slovenian translation

Rafael Fontenelle (1):
      Update Brazilian Portuguese translation

Ryuta Fujii (1):
      Update Japanese translation

Serdar Sağlam (1):
      Update Turkish translation

Sveinn í Felli (1):
      Update Icelandic translation