Initial commit for second approach for multiple kvno. NOT TESTED!

lib/hdb/test_hdbkeys.c

@@ -88,6 +88,7 @@ main(int argc, char **argv)
     memset(&keyset, 0, sizeof(keyset));
 
     keyset.kvno = kvno_integer;
+    keyset.replace_time = time(NULL);
 
     ret = hdb_generate_key_set_password(context, principal, password_str,
 					&keyset.keys.val, &len);