[metacity] bump version to 3.18.1, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 41a7e15eeaeb42c5b32f3721b47e55a24e45ba9d
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Oct 12 22:12:19 2015 +0300

    bump version to 3.18.1, update NEWS

 NEWS         |    5 +++++
 configure.ac |    2 +-
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index a9b3103..9bf8c75 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+Version 3.18.1
+==============
+- Updated translations:
+  Rafael Fontenelle (pt_BR), Trần Ngọc Quân (vi).
+
 Version 3.18.0
 ==============
 - Fix adwaita theme fallback colors. (Balló György)
diff --git a/configure.ac b/configure.ac
index dc44eb4..9845ecc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ dnl **************************************************************************
 
 m4_define([m_major_version], [3])
 m4_define([m_minor_version], [18])
-m4_define([m_micro_version], [0])
+m4_define([m_micro_version], [1])
 m4_define([m_version], [m_major_version.m_minor_version.m_micro_version])
 
 dnl **************************************************************************