[gnome-boxes] build: Require next version of vala

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 15fdb337c8b11ff654e198e79fc1b2d79df97220
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Thu Jan 30 21:14:21 2014 +0000

    build: Require next version of vala
    
    So that we can remove workarounds for bug#720825.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 5fee22c..5f2aa09 100644
--- a/configure.ac
+++ b/configure.ac
@@ -130,7 +130,7 @@ else
 fi
 AM_CONDITIONAL([HAVE_OVIRT], [test "x$have_govirt" = "xyes"])
 
-VALA_CHECK([0.21.1], [
+VALA_CHECK([0.23.1.1], [
   clutter-gtk-1.0
   cogl-1.0
   gdk-pixbuf-2.0