[baobab] Bump vala requirement

[Stefano Facchini <sfacchini src gnome org>]

commit 4263ffe44fdb66b46de2213ba54ffd93f130b511
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Sun Aug 4 10:56:11 2013 +0200

    Bump vala requirement

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a9ef0e1..8f99725 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[The name of the gettext d
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
-AM_PROG_VALAC([0.20.1.41])
+AM_PROG_VALAC([0.21.1])
 PKG_PROG_PKG_CONFIG([0.22])
 
 ## don't rerun to this point if we abort