[gnome-boxes] Created tag v3.20.4

[Felipe Borges <felipeborges src gnome org>]

The unsigned tag 'v3.20.4' was created.

Tagger: Felipe Borges <felipeborges gnome org>
Date: Mon Feb 6 16:21:45 2017 +0100

    Release 3.20.4

Changes since the last tag 'v3.20.3':

Anders Jonsson (1):
      Update Swedish translation

Christian Kirbach (1):
      Update German translation

Debarshi Ray (5):
      Minor correction to 3.20.3 release notes
      vm-configurator: Fix typo in debug string
      unattended-setup-box: Remove redundant code
      configure: Require libsecret
      unattended-setup-box: Don't cache passwords in plain text

Felipe Borges (1):
      Release 3.20.4

Jürg Billeter (2):
      selectionbar: Fix printf format string
      selection-toolbar: Fix printf format string

Piotr Drąg (1):
      Update Polish translation

Rafael Fontenelle (1):
      Update Brazilian Portuguese translation