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/randpsl.test

@@ -0,0 +1,34 @@
+#!/bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2011, 2012, 2014, 2015 Laboratoire de Recherche et
+# Développement de l'Epita (LRDE).
+#
+# 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/>.
+
+
+. ./defs
+
+set -e
+
+# Generate 50 random unique PSL formula that do not simplify to LTL
+# formulae, and that have a size of at lease 12.
+../../bin/randltl -n -1 --tree-size 30 --seed 12 --psl a b c |
+../../bin/ltlfilt -r --size-min 12 --unique |
+../../bin/ltlfilt -v --ltl -n 50 | tee formulas |
+../../bin/ltlcross '../ikwiad -R3 -t %f >%T' '../ikwiad -x -R3 -t %f >%T' \
+  -F - -f '{{(p1)}[*]:{(p3) && {{!(p1)} xor {!(p3)}}}}'
+
+test `wc -l < formulas` = 50