ltldo: new binary

* src/bin/common_trans.cc, src/bin/common_trans.hh: New files,
extracted from...
* src/bin/ltlcross.cc: ... here, so that ltldo can use them.
* src/bin/ltldo.cc: New file.
* src/bin/Makefile.am: Adjust.
* src/bin/common_aoutput.cc, src/bin/common_aoutput.hh: Make
it possible to add new statistics.
* doc/org/ltldo.org: New file.
* doc/Makefile.am, doc/org/tools.org: Adjust.
* src/bin/man/ltldo.x: New file.
* src/bin/man/Makefile.am: Adjust.
* src/bin/man/ltlcross.x, src/bin/man/ltlfilt.x: Mention ltldo(1).
* src/tgbatest/ltldo.test, src/tgbatest/ltldo2.test: New files.
* src/tgbatest/Makefile.am: Add them.
* NEWS: Mention ltldo.

src/tgbatest/ltldo2.test

@@ -0,0 +1,31 @@
+#!/bin/sh
+# -*- 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/>.
+
+. ./defs
+set -e
+
+ltldo=../../bin/ltldo
+genltl=../../bin/genltl
+
+test -n "$LTL2BA" || exit 77
+
+$genltl --or-g=1..2 |
+    run 0 $ltldo '{ltl2ba}ltl2ba -f %s>%H' >output
+test 2 = `grep -c digraph output`