[gnome-2048] Created tag 3.21.90

[Arnaud Bonatti <arnaudb src gnome org>]

The unsigned tag '3.21.90' was created.

Tagger: Arnaud Bonatti <arnaud bonatti gmail com>
Date: Wed Aug 17 22:57:42 2016 +0200

    Release (finally) 3.21.90.

Changes since the last tag '3.20.1':

Andika Triwidada (1):
      Added Indonesian translation     (cherry picked from commit 177ae407b68a0eccc47632f276acbd0f11e27c7d)

Arnaud Bonatti (8):
      Do not create widgets on activate().
      Switch to libgnome-games-support.
      Update AppData file.
      Update AppData screenshot.
      Add app.new-game shortcut.
      Prepare 3.21.90.
      Fix an AppData format.
      How did that distcheck before?

Aurimas Černius (1):
      Updated Lithuanian translation

Piotr Drąg (1):
      Add Language headers to po files