[gdm] NEWS: update for release

[Ray Strode <halfline src gnome org>]

commit b27df79cbe1607c9a124960c3118366e3897e248
Author: Ray Strode <rstrode redhat com>
Date:   Fri Aug 3 17:45:48 2018 -0400

    NEWS: update for release

 NEWS | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/NEWS b/NEWS
index 450581f9..603f8c98 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,15 @@
+===============
+Version 3.29.90
+===============
+- display wayland on certain server machines
+- lifecycle fixes to libgdm/GdmClient
+- drop intltool
+- build goo clean ups
+- kill login screen when not in use
+- clean up stale utmp entries
+- misc fixes
+- Translation updates
+
 ==============
 Version 3.29.1
 ==============