[gnome-backgrounds] Update version number and NEWS for 3.13.90

[Thomas Wood <thos src gnome org>]

commit dfa69411b1a942cbb8a0ddaca2389e5e59f6796d
Author: Thomas Wood <thos gnome org>
Date:   Mon Aug 18 11:54:24 2014 +0100

    Update version number and NEWS for 3.13.90

 NEWS         |   21 +++++++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 22 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 8dcf15b..430e7a8 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,24 @@
+===============
+Version 3.13.90
+===============
+
+* Release for GNOME 3.13.90
+* Add default wallpaper (Adwaita)
+
+Updated translations:
+
+  Aurimas Černius (lt)
+  Carles Ferrando (ca valencia)
+  Daniel Mustieles (es)
+  Gil Forcada (ca)
+  Marek Černocký (cs)
+  Piotr Drąg (pl)
+  Rafael Ferreira (pt_BR)
+  Safa Alfulaij (ar)
+  Tom Tryfonidis (el)
+  Wolfgang Stöggl (de)
+
+
 ==============
 Version 3.12.2
 ==============
diff --git a/configure.ac b/configure.ac
index 02efb18..d46b791 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_INIT([gnome-backgrounds],
-        [3.12.2],
+        [3.13.90],
         [http://bugzilla.gnome.org/browse.cgi?product=gnome-backgrounds],
         [gnome-backgrounds])