[gnome-code-assistance] Fix build with vala 0.34

[Giovanni Campagna <gcampagna src gnome org>]

commit 94c07f798c206c80dde7228de12b48633209d67f
Author: Giovanni Campagna <gcampagn cs stanford edu>
Date:   Sun Jun 12 21:39:48 2016 -0700

    Fix build with vala 0.34
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765638

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 78815da..9f9cc6a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -410,7 +410,7 @@ AC_ARG_ENABLE([vala],
               [enable_vala=$enableval],
               [enable_vala=auto])
 
-BACKEND_VALA_LIBVALA_VERSIONS="libvala-0.32 libvala-0.30 libvala-0.28 libvala-0.26 libvala-0.24 libvala-0.22 
libvala-0.20"
+BACKEND_VALA_LIBVALA_VERSIONS="libvala-0.34 libvala-0.32 libvala-0.30 libvala-0.28 libvala-0.26 libvala-0.24 
libvala-0.22 libvala-0.20"
 BACKEND_VALA_MODULES="gobject-2.0 >= 2.36 glib-2.0 >= 2.36 gio-2.0 >= 2.36 gee-0.8 gio-unix-2.0 >= 2.36"
 
 BACKEND_VALA_LIBVALA=