[gnome-flashback] bump version to 3.18.1, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit b7e3748e9e70995c504e2fe6f3927a1ac0c2784a
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Oct 15 10:22:37 2015 +0300

    bump version to 3.18.1, update NEWS

 NEWS         |    7 +++++++
 configure.ac |    2 +-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index d930038..0bb72b8 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+Version 3.18.1
+==============
+- Improved input source switching. (Alberts Muktupāvels, Sebastian Geiger)
+- Updated translations:
+  Gábor Kelemen (hu), Piotr Drąg (pl), Rafael Fontenelle (pt_BR),
+  Stas Solovey (ru), Tom Tryfonidis (el).
+
 Version 3.18.0
 ==============
 - Added bluetooth applet. (Alberts Muktupāvels, Balló György)
diff --git a/configure.ac b/configure.ac
index baf9c47..615b0dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ dnl **************************************************************************
 
 m4_define([gf_major_version], [3])
 m4_define([gf_minor_version], [18])
-m4_define([gf_micro_version], [0])
+m4_define([gf_micro_version], [1])
 m4_define([gf_version], [gf_major_version.gf_minor_version.gf_micro_version])
 
 dnl **************************************************************************