[gdm/gnome-3-18] NEWS: update for release

[Tim Lunn <timl src gnome org>]

commit 15b405f96a88b765bea5d1bc9e4a2fb713da40c9
Author: Tim Lunn <tim feathertop org>
Date:   Thu Apr 14 15:42:34 2016 +1000

    NEWS: update for release

 NEWS |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 092151e..c6918da 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,16 @@
 ==============
+Version 3.18.3
+==============
+- Get rid of "custom" session
+- Use -listen instead of -nolisten for new Xorg
+- Don't override PAM message for password change
+- ensure unlock screen gets told when verification completes
+- Fix log output
+- Fix timed login
+- Fix passwordless logins on Debian/Ubuntu
+- Don't allow passwordless XDMCP logins
+
+==============
 Version 3.18.2
 ==============
 - CVE-2015-7496 - lock screen bypass when holding escape key