[gnome-panel/gnome-3-18] bump version to 3.18.3, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 0a54eb35e7b8d3b5793b6ee1519fafe2c4cab8b9
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Aug 12 15:01:17 2016 +0300

    bump version to 3.18.3, update NEWS

 NEWS         |    7 +++++++
 configure.ac |    2 +-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index e5d5b35..9a21ddc 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+Version 3.18.3
+==============
+- Fix user switching with GDM (Alberts Muktupāvels; #769009)
+- Disable scaling support in GTK+ (Alberts Muktupāvels)
+- Updated translations:
+  Andika Triwidada (id), Cédric Valmary (oc), Dušan Kazik (sk).
+
 Version 3.18.2
 ==============
 - Fix crash when moving applets between panels. (Alberts Muktupāvels)
diff --git a/configure.ac b/configure.ac
index 44829b8..cb6c9e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ dnl **************************************************************************
 
 m4_define([gp_major_version], [3])
 m4_define([gp_minor_version], [18])
-m4_define([gp_micro_version], [2])
+m4_define([gp_micro_version], [3])
 m4_define([gp_version], [gp_major_version.gp_minor_version.gp_micro_version])
 
 dnl **************************************************************************