[seahorse-nautilus] Allow building with gnupg 2.1

[Kalev Lember <klember src gnome org>]

commit 0fad0fcf8adca04f9b0a5a8832a268c835fcd9bd
Author: Kalev Lember <klember redhat com>
Date:   Tue Sep 1 19:48:25 2015 +0200

    Allow building with gnupg 2.1

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 471b34d..ac56984 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,7 @@ AC_ARG_ENABLE(gpg-check,
        DO_CHECK=$enableval, DO_CHECK=yes)
 
 if test        "$DO_CHECK" = "yes"; then
-       accepted_versions="1.2 1.4 2.0"
+       accepted_versions="1.2 1.4 2.0 2.1"
        AC_PATH_PROGS(GNUPG, [gpg gpg2], no)
        ok="no"
        if test "$GNUPG" != "no"; then