move spot/bin/ and spot/tests/ up by one level

* spot/bin/: Move...
* bin/: ... here.
* spot/tests/: Move...
* tests/: ... here.
* Makefile.am, README, bench/stutter/Makefile.am,
bench/stutter/stutter_invariance_formulas.cc, doc/Makefile.am,
configure.ac, debian/rules, spot/Makefile.am, spot/ltsmin/Makefile.am,
spot/ltsmin/kripke.test, spot/sanity/style.test, python/tests/run.in:
Adjust.

tests/reduc.test

@@ -0,0 +1,47 @@
+#! /bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2009, 2010, 2012, 2015 Laboratoire de Recherche et
+# Développement de l'Epita (LRDE).
+# Copyright (C) 2004, 2005, 2006 Laboratoire d'Informatique de Paris 6
+# (LIP6), département Systèmes Répartis Coopératifs (SRC), Université
+# Pierre et Marie Curie.
+#
+# This file is part of Spot, a model checking library.
+#
+# Spot is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Spot is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+# License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+# Check for the reduc visitor.
+. ./defs || exit 1
+
+set -e
+
+randltl=../../bin/randltl
+
+FILE=formulae
+: > $FILE
+# for i in 10 11 12 13 14 15 16 17 18 19 20; do
+for i in 10 12 14 16 18 20; do
+  run 0 $randltl --seed 0   --tree-size $i a b c       -n 100 >> $FILE
+  run 0 $randltl --seed 100 --tree-size $i a b c d e f -n 100 >> $FILE
+done
+
+for opt in 0 1 2 3 7; do
+  run 0 ../reduc -f -h $opt "$FILE"
+done
+# Running the above through valgrind is quite slow already.
+# Don't use valgrind for the next reductions (even slower).
+for opt in 8 9; do
+  ../reduc -f -h $opt "$FILE"
+done