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_conv.cc

@@ -0,0 +1,88 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 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/>.
+
+#include "common_conv.hh"
+#include <cstdlib>
+#include "error.h"
+
+int
+to_int(const char* s)
+{
+  char* endptr;
+  int res = strtol(s, &endptr, 10);
+  if (*endptr)
+    error(2, 0, "failed to parse '%s' as an integer.", s);
+  return res;
+}
+
+int
+to_pos_int(const char* s)
+{
+  int res = to_int(s);
+  if (res < 0)
+    error(2, 0, "%d is not positive", res);
+  return res;
+}
+
+unsigned
+to_unsigned (const char *s)
+{
+  char* endptr;
+  unsigned res = strtoul(s, &endptr, 10);
+  if (*endptr)
+    error(2, 0, "failed to parse '%s' as an unsigned integer.", s);
+  return res;
+}
+
+float
+to_float(const char* s)
+{
+  char* endptr;
+  float res = strtof(s, &endptr);
+  if (*endptr)
+    error(2, 0, "failed to parse '%s' as a float.", s);
+  return res;
+}
+
+float
+to_probability(const char* s)
+{
+  float res = to_float(s);
+  if (res < 0.0 || res > 1.0)
+    error(2, 0, "%f is not between 0 and 1.", res);
+  return res;
+}
+
+std::vector<long>
+to_longs(const char* arg)
+{
+  std::vector<long> res;
+  while (*arg)
+    {
+      char* endptr;
+      long value = strtol(arg, &endptr, 10);
+      if (endptr == arg)
+        error(2, 0, "failed to parse '%s' as an integer.", arg);
+      res.push_back(value);
+      while (*endptr == ' ' || *endptr == ',')
+        ++endptr;
+      arg = endptr;
+    }
+  return res;
+}