[anjuta] Support Vala 0.26

[Abderrahim Kitouni <akitouni src gnome org>]

commit a3c8832d7b090740080094ec5e9b28e3c80d6d0e
Author: Abderrahim Kitouni <a kitouni gmail com>
Date:   Mon Jul 7 18:40:48 2014 +0100

    Support Vala 0.26

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0998b11..fe3b2f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -318,7 +318,7 @@ if test "$user_disabled_vala" = 1; then
 else
         AC_MSG_RESULT(no)
        AC_MSG_CHECKING(if libvala is available)
-       m4_foreach([VERSION], [[0.18], [0.20], [0.22], [0.24]],
+       m4_foreach([VERSION], [[0.18], [0.20], [0.22], [0.24], [0.26]],
                [PKG_CHECK_EXISTS([ libvala-VERSION ],
                         [ valaver="-VERSION" ])
                         ])