[gdm] NEWS: update for release

[Ray Strode <halfline src gnome org>]

commit d31c235a8e603c3636cfeacdb94b4723a63e6a22
Author: Ray Strode <rstrode redhat com>
Date:   Wed Dec 13 11:09:47 2017 -0500

    NEWS: update for release

 NEWS |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 967ac97..0b6a3cb 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,11 @@
 ==============
+Version 3.27.3
+==============
+- don't call gdm_session_defaults_changed from setup
+- Add dependency to .pc file
+- code clean ups
+
+==============
 Version 3.26.1
 ==============
 - Check for Xwayland before agreeing to do wayland