Merge the core and python tests in the tests/ directory

* tests/: Rename as...
* tests/core/: ... this.
* python/tests/: Rename as...
* tests/python/: ... this.
* python/tests/run.in: Move as...
* tests/run.in: This, and adjust.
* tests/Makefile.am: Adjust to run both core and python tests.
* configure.ac, README, debian/python3-spot.examples, debian/rules,
doc/org/tut.org, python/Makefile.am, spot/ltsmin/Makefile.am,
spot/ltsmin/kripke.test, spot/sanity/ipynb.test: Adjust.

tests/core/kripke.test

@@ -0,0 +1,139 @@
+#! /bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2011, 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/>.
+
+. ./defs
+
+set -e
+
+cat >input1 <<EOF
+HOA: v1
+States: 4
+Start: 0
+AP: 2 "a" "b"
+Acceptance: 0 t
+properties: state-labels
+--BODY--
+State: [!1] 0
+1
+State: [0&1] 1
+2
+State: [0] 2
+3 0
+State: [1] 3
+0
+--END--
+HOA: v1
+States: 2
+Start: 0
+AP: 0
+Acceptance: 0 t
+properties: state-labels
+--BODY--
+State: [t] 0 0 1
+State: [t] 1 0 1
+--END--
+HOA: v1
+States: 1
+Start: 0
+AP: 2 "a" "b"
+Acceptance: 0 t
+properties: state-labels
+--BODY--
+State: [0&1] 0 0
+--END--
+HOA: v1
+States: 6
+Start: 0
+AP: 0
+Acceptance: 0 t
+properties: state-labels
+--BODY--
+State: [t] 0
+1 2 3 4 5
+State: [f] 1
+State: [f] 2
+State: [f] 3
+State: [f] 4
+State: [f] 5
+--END--
+EOF
+
+run 0 ../parse_print input1 > input1.out
+run 0 ../parse_print input1.out > input1.out2
+
+
+cat >input2 <<EOF
+HOA: v1
+States: 4
+Start: 0
+AP: 0
+Acceptance: 0 t
+properties: state-labels
+--BODY--
+State: [t] 0
+1 2 3
+--END--
+HOA: v1
+States: 2
+Start: 0
+AP: 0
+Acceptance: 1 Fin(0)
+properties: state-labels
+--BODY--
+State: [t] 0
+0 1 {0}
+State: 1
+[t] 0 [f] 1
+--END--
+DRA v2 explicit
+Comment: "Safra[NBA=2]"
+States: 3
+Acceptance-Pairs: 1
+Start: 0
+AP: 1 "a"
+---
+State: 0
+Acc-Sig:
+1
+2
+State: 1
+Acc-Sig: -0
+1
+1
+State: 2
+Acc-Sig: +0
+2
+2
+EOF
+
+../parse_print input2 2>output2.err && exit 1
+cat output2.err
+cat >expected2<<EOF
+input2:9.1: state 1 has no definition
+input2:9.3: state 2 has no definition
+input2:9.5: state 3 has no definition
+input2:15.13-20: the acceptance for Kripke structure must be '0 t'
+input2:20.1-8: Kripke structures should have labeled states
+input2:21.1-3: transition label used although the automaton was...
+input2:16.13-24: ... declared with 'properties: state-labels' here
+input2:23.1-3: cannot read a Kripke structure out of a DSTAR automaton
+EOF
+
+diff output2.err expected2