[gnome-contacts] Change autoconf req to 2.67

[Alexander Larsson <alexl src gnome org>]

commit 42a13a0e46dbf6df7b26c42b6ec2a0be190c4537
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Jun 20 09:44:55 2011 +0200

    Change autoconf req to 2.67
    
    We don't need 2.68 as far as i know, and some people
    don't have it yet:
    
    https://bugzilla.gnome.org/show_bug.cgi?id=652652

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0c32f64..7bc01b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_PREREQ([2.68])
+AC_PREREQ([2.67])
 AC_INIT([gnome-contacts],[0.1.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-contacts])
 AC_CONFIG_SRCDIR([src/main.vala])
 AC_CONFIG_HEADERS([config.h])