[gnome-session] NEWS: update for release

[Ray Strode <halfline src gnome org>]

commit 67d93220092b15b46f6db44354780df4d25091c1
Author: Ray Strode <rstrode redhat com>
Date:   Thu Aug 18 14:13:21 2016 -0400

    NEWS: update for release

 NEWS |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 6b07d4d..d4ba62a 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+===============
+Version 3.21.90
+===============
+       * Do not report errors in the absence of dbus-update-activation-environment
+       * Support reading kernel gnome.fallback variable on FreeBSD
+       * Allow IM environment variables to be overridden
+       * Translation updates
+
 ==============
 Version 3.21.4
 ==============