[gnome-boxes/gnome-3-20] Release 3.20.4

[Felipe Borges <felipeborges src gnome org>]

commit 2444c8b1ace61067dd6a313612dd44e3584d9c48
Author: Felipe Borges <felipeborges gnome org>
Date:   Mon Feb 6 16:21:35 2017 +0100

    Release 3.20.4

 NEWS |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index d047039..355fb44 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,32 @@
+3.20.4 - Feb 6, 2017
+====================
+
+Unplanned release to fix a possibly exploitable vulnerability.
+
+Changes since 3.22.3:
+
+- Store the user password in the keyring during an express installation.
+- Fix typo in debug string.
+- Fix printf format strings.
+- Added/updated/fixed translations:
+  - German
+  - Polish
+  - Brazilian Portuguese
+  - Swedish
+
+Dependencies changed:
+
+libsecret-1 (new dependency)
+
+All contributors to this release:
+
+Anders Jonsson <anders jonsson norsjovallen se>
+Christian Kirbach <Christian Kirbach gmail com>
+Debarshi Ray <debarshir gnome org>
+Jürg Billeter <j bitron ch>
+Piotr Drąg <piotrdrag gmail com>
+Rafael Fontenelle <rafaelff gnome org>
+
 3.20.3 - Nov  3, 2016
 =====================