[nautilus-sendto] Bump GTK+ requirement to 2.18

[Andre Klapper <aklapper src gnome org>]

commit 2d140007d1b9b541d922ceda04439c17bce70fd9
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat May 29 03:42:04 2010 +0200

    Bump GTK+ requirement to 2.18

 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index 1e9e934..214be7c 100644
--- a/configure.in
+++ b/configure.in
@@ -31,7 +31,7 @@ dnl --------------------------------------------------
 
 GLIB_REQUIRED=2.6.0
 GTHREAD_REQUIRED=2.6.0
-GTK_REQUIRED=2.12
+GTK_REQUIRED=2.18
 EBOOK_REQUIRED=1.5.3
 GCONF_REQUIRED=2.13.0
 NAUTILUS_EXTENSION=2.13.3