[folks] Bump required Vala version.

[Travis Reitter <treitter src gnome org>]

commit 01595d5d8198dcc6b40606b12fc931764d4e47e3
Author: Travis Reitter <travis reitter collabora co uk>
Date:   Wed Sep 7 14:23:39 2011 -0700

    Bump required Vala version.
    
    This avoids breaking the build due to valac --fatal-warnings for our
    internal code.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 59f7479..88e203a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -128,7 +128,7 @@ AM_CONDITIONAL([ENABLE_LIBSOCIALWEB],
 
 GLIB_REQUIRED=2.24.0
 TP_GLIB_REQUIRED=0.13.1
-VALA_REQUIRED=0.13.3
+VALA_REQUIRED=0.13.4
 VALADOC_REQUIRED=0.3.1
 TRACKER_SPARQL_REQUIRED=0.10
 TRACKER_SPARQL_NEWER_VER=0.10.6