[gnome-system-monitor] Created tag 3.31.91

[Robert Roth <robertroth src gnome org>]

The unsigned tag '3.31.91' was created.

Tagger: Robert Roth <robert roth bee-tf ro>
Date: 1550517005 +0200

    Tagged release 3.31.91

Changes since the last tag '3.31.90':

Alan Mortensen (1):
      Updated Danish translation

Anders Jonsson (1):
      Update Swedish translation

Balázs Úr (1):
      Update Hungarian translation

Baurzhan Muftakhidinov (1):
      Update Kazakh translation

Daniel Mustieles (1):
      Updated Spanish translation

Daniel Șerbănescu (1):
      Update Romanian translation

Efstathios Iosifidis (1):
      Update Greek translation

Emin Tufan Çetin (1):
      Update Turkish translation

Fran Dieguez (1):
      Update Galician translation

Jiri Grönroos (1):
      Update Finnish translation

Jordi Mas (1):
      Update Catalan translation

Kukuh Syafaat (1):
      Update Indonesian translation

Marek Cernocky (2):
      Updated Czech translation
      Updated Czech translation

Matej Urbančič (1):
      Updated Slovenian translation

Piotr Drąg (2):
      Update Polish translation
      Update Polish translation

Robert Roth (3):
      Revert "This reverts commit f851b94092fad46e5b0cbbc4116c6f1401ffa75b."
      Merge branch 'wip/snwh/app-icon-redesign'
      Prepared release 3.31.91

Sam Hewitt (1):
      icon: update asset for HIG changes

Yi-Jyun Pan (1):
      Update Chinese (Taiwan) translation