[gnome-sudoku] Require vala 0.25.1

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 8660ba78af9690707c5efb4a9438d7fab9ad2163
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Sep 15 16:01:09 2014 -0500

    Require vala 0.25.1
    
    For GLib.Source.REMOVE

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b6dbcaf..f28f34b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,7 +9,7 @@ GNOME_MAINTAINER_MODE_DEFINES
 AC_PROG_CC
 AC_PROG_CXX
 
-AM_PROG_VALAC([0.24.0])
+AM_PROG_VALAC([0.25.1])
 AM_PROG_CC_C_O
 
 LT_PREREQ([2.4])