[zenity] Bump to 3.18.0

[Arx Henrique Pereira da Cruz <arxcruz src gnome org>]

commit c2ac30a213053484d80fe7f7997a69129828d1d7
Author: Arx Cruz <arxcruz gnome org>
Date:   Mon Sep 21 14:45:06 2015 +0200

    Bump to 3.18.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 59814d3..f90ceac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Zenity],[3.16.3],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
+AC_INIT([Zenity],[3.18.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
 
 AC_PREREQ([2.63])