[epiphany] Created tag 3.31.91

[Michael Catanzaro <mcatanzaro src gnome org>]

The unsigned tag '3.31.91' was created.

Tagger: Michael Catanzaro <mcatanzaro igalia com>
Date: 1550533659 -0600

    Epiphany 3.31.91

Changes since the last tag '3.31.90':

Adrien Plazas (1):
      Bump libhandy to 0.0.8

Alan Mortensen (1):
      Updated Danish translation

Alexander Mikhaylenko (2):
      CSS: Style tabs for incognito window
      CSS: Regenerate from SASS

Aurimas Černius (1):
      Updated Lithuanian translation

Balázs Úr (1):
      Update Hungarian translation

Baurzhan Muftakhidinov (1):
      Update Kazakh translation

Daniel Mustieles (1):
      Updated Spanish translation

Emin Tufan Çetin (1):
      Update Turkish translation

Fabio Tomat (1):
      Update Friulian 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

Michael Catanzaro (6):
      Improve Firefox disclaimer string
      embed-shell-test: stop messing with environment
      session: Delay loads only in browser or standalone mode
      Remove support for do-not-track headers
      Switch libdazzle and libhandy to submodules
      Epiphany 3.31.91

Piotr Drąg (1):
      Update Polish translation

Rafael Fontenelle (1):
      Update Brazilian Portuguese translation

Serdar Sağlam (1):
      Update Turkish translation