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.

bin/common_r.hh

@@ -0,0 +1,47 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2012, 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/>.
+
+#pragma once
+
+#include "common_sys.hh"
+#include <spot/tl/simplify.hh>
+
+#define OPT_R 'r'
+
+#define DECLARE_OPT_R							\
+    { "simplify", OPT_R, "LEVEL", OPTION_ARG_OPTIONAL,			\
+      "simplify formulas according to LEVEL (see below); LEVEL is "	\
+      "set to 3 if omitted", 0 }
+
+#define LEVEL_DOC(g)						\
+    { nullptr, 0, nullptr, 0,					\
+      "The simplification LEVEL may be set as follows.", g },	\
+    { "  0", 0, nullptr, OPTION_DOC | OPTION_NO_USAGE,		\
+      "No rewriting", 0 },					\
+    { "  1", 0, nullptr, OPTION_DOC | OPTION_NO_USAGE,		\
+      "basic rewritings and eventual/universal rules", 0 },	\
+    { "  2", 0, nullptr, OPTION_DOC | OPTION_NO_USAGE,		\
+      "additional syntactic implication rules", 0 },		\
+    { "  3", 0, nullptr, OPTION_DOC | OPTION_NO_USAGE,		\
+      "better implications using containment", 0 }
+
+extern int simplification_level;
+
+void parse_r(const char* arg);
+spot::tl_simplifier_options simplifier_options();