[gdm] configure: bump to 3.18.0

[Ray Strode <halfline src gnome org>]

commit 494ec8cee5727c37118994d3864c44f36aa454fc
Author: Ray Strode <rstrode redhat com>
Date:   Mon Sep 21 10:13:34 2015 -0400

    configure: bump to 3.18.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a84532f..3c075be 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.17.92],
+        [3.18.0],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])