If no input have been specified, and the standard input is not a tty all
tools now default to reading it.  If standard input is a tty, all tools
display an error message.  Additionally, - is now a shorthand for -F- in
all tools.

* NEWS: Summarize this.
* bin/common_finput.cc, bin/common_finput.hh (check_no_formulas,
check_no_automaton): New functions that implement the above istty()
logic.
* bin/autfilt.cc, bin/dstar2tgba.cc, bin/ltl2tgba.cc, bin/ltl2tgta.cc,
bin/ltlcross.cc, bin/ltldo.cc, bin/ltlgrind.cc: Use these function,
and recognize '-' if it was not the case.
* tests/core/acc_word.test, tests/core/ltldo.test,
tests/core/minusx.test, tests/core/readsave.test,
tests/core/unambig.test: Adjust some tests to exercise this.
* doc/org/autfilt.org, doc/org/csv.org, doc/org/dstar2tgba.org,
doc/org/ltl2tgba.org, doc/org/ltlcross.org, doc/org/ltlfilt.org,
doc/org/oaut.org: Adjust the documentation and simplify some
examples.

{e[*0..j]}<>->f = {e[*1..j]}<>->f
{e[*0..j]}[]->f = {e[*1..j]}[]->f

Fixes #81.

This required a small change to the bounded-star-normal-form to prevent
infinite recursion.

* spot/tl/simplify.cc: Implement these rules.
* doc/tl/tl.tex, NEWS: Document them.
* tests/core/reduccmp.test: Add tests, and adjust others.
* tests/core/unambig.test: Replace formula that used to generated an
ambiguous automaton, but now generates a deterministic one.

if e is pure eventuality and g => e, then e U g = Fg
if u is purely universal and u => g, then u R g = Gg

Fixes #93.

* doc/tl/tl.tex, NEWS: Document the rules.
* spot/tl/simplify.cc: Implement them.
* tests/core/reduccmp.test: Test them.
* tests/core/det.test: Adjust.

* python/spot/aux.py (tmpdir): New context manager.
* python/spot/ltsmin.i: Use it for the two magics.
* NEWS: Mention this.

The streett_to_generalized_buchi() function was not tested unless
ltl2dstar is installed.

* tests/core/streett.test: New file.
* tests/Makefile.am: Add it.

* bin/autfilt.cc: Implement the option.
* NEWS: Mention it.
* tests/core/readsave.test, tests/core/stutter-tgba.test: Add some
tests.

Fixes #164.

* spot/twaalgos/stutter.hh, spot/twaalgos/stutter.cc: Implement
the determinization, while keeping it optional.
* NEWS: Mention the change.
* tests/core/ltl2dstar.test, tests/core/stutter-tgba.test: Add
test cases.
* tests/core/readsave.test: Adjust.

* python/spot/impl.i: Here.
* NEWS: Mention it.
* tests/python/highlighting.ipynb: Add test case.

* spot/twa/twagraph.hh (twa_graph::edge_number): New method.
* spot/twaalgos/copy.cc: Copy the highlights if requested.
* tests/python/highlighting.ipynb: More tests.

Fixes #153.

* spot/twa/twa.cc, spot/twa/twa.hh: Add the methods.
* bin/autfilt.cc, bin/common_aoutput.hh, bin/ltlcross.cc,
tests/python/highlighting.ipynb, tests/python/word.ipynb: Use
them to simplify the code.
* NEWS: Mention them.

* tests/python/highlighting.ipynb: Augment.

It was bogus, and is better replaced by twa_run::project().

* NEWS, doc/org/upgrade2.org: Mention the removal.
* spot/twaalgos/projrun.cc, spot/twaalgos/projrun.hh: Remove the files.
* spot/twaalgos/Makefile.am: Adjust.

* bin/autfilt.cc: Add the option.
* NEWS: Mention it.
* tests/core/acc_word.test: Test it.
* spot/twaalgos/emptiness.cc,
spot/twaalgos/emptiness.hh (twa_run::project): New method.

* spot/twa/twa.hh (twa::get_or_set_named_prop): New method.
* spot/twaalgos/emptiness.cc, spot/twaalgos/isdet.cc: Use it to not
overwrite existing highlights.
* tests/core/det.test: Add test case.

* bin/genltl.cc: Implement these options.
* NEWS: Mention them.
* tests/core/genltl.test: New file with test cases.
* tests/Makefile.am: Add it.

* bin/autfilt.cc: Here.
* tests/core/det.test: Test it.
* NEWS: Mention it.

It makes more sense to keep the transformationn options near the
simplification options.

* bin/autfilt.cc: Reorder --help.

Fixes #123.

* bin/autfilt.cc: Add options --highlight-nondet-states=NUM,
 --highlight-nondet-edges=NUM, and  --highlight-nondet=NUM.
* spot/twaalgos/isdet.cc,
spot/twaalgos/isdet.hh (highlight_nondet_states,
highlight_nondet_edges): New functions.
* tests/core/det.test: Add test cases.
* NEWS: Mention them.

* spot/twa/twa.cc, spot/twa/twa.hh: Add a way to
remove named properties.
* spot/twa/twagraph.cc: Clear highlight-edges on operations
that reorder the edge vector.
* spot/twaalgos/randomize.cc, spot/twaalgos/randomize.hh:
Preserve highlighted state, but not highlighted edges.
* spot/twaalgos/hoa.cc: Adjust output of highlight-edge
when the edges are not stored in order.
* tests/core/readsave.test, tests/core/tgbagraph.test,
tests/core/twagraph.cc: More test cases.

* spot/twaalgos/hoa.cc: Here.
* doc/org/hoa.org, NEWS: Document that.
* tests/core/readsave.test: Test it.

* doc/org/concepts.org: Add a new section.
* doc/org/hoa.org, spot/twa/twa.hh: Link to it.
* NEWS: Mention it.

* bin/ltlcross.cc: Here.

* spot/twaalgos/isdet.cc: Here.
* bin/ltlcross.cc: Simplify.
* NEWS: Update.

Failures could be reported against "Comp(Ni)*Comp(Pj)" when
it was really "Comp(Nj)*Comp(Pi)" that failed.

* bin/ltlcross.cc: Here.
* NEWS: Mention the bug.

* NEWS, configure.ac, doc/org/setup.org: Update.

Reported by Ayrat Khalimov against the trans.html page when using
ltl3ba.

* spot/twaalgos/relabel.cc: Here.
* tests/core/ltl3dra.test: Test it.
* NEWS: Mention it.
* THANKS: Add Ayrat.

* bin/common_post.cc, bin/common_post.hh: Add a "nooutput" variant of
the options.
* bin/ltl2tgta.cc: Use it.
* NEWS: Mention the fix.

* python/ajax/spotcgi.in: Here.
* NEWS: Mention it.

* spot/twaalgos/degen.cc: Here.
* tests/core/degendet.test: Add test case.
* tests/core/ltl2ta.test: Adjust expected output.
* NEWS: Mention the issue.

Reported by Ayrat Khalimov against the trans.html page when using
ltl3ba.

* spot/twaalgos/relabel.cc: Here.
* tests/core/ltl3dra.test: Test it.
* NEWS: Mention it.
* THANKS: Add Ayrat.

* bin/common_post.cc, bin/common_post.hh: Add a "nooutput" variant of
the options.
* bin/ltl2tgta.cc: Use it.
* NEWS: Mention the fix.

* python/ajax/spotcgi.in: Here.
* NEWS: Mention it.

* python/ajax/logos/lip6sys64.png, python/ajax/logos/lrde64.png: Delete.
* python/ajax/css/trans.css, python/ajax/trans.html,
python/ajax/Makefile.am: Adjust.

* tests/python/ipnbdoctest.py: Adjust sanitize function.
* tests/python/ltsmin-pml.ipynb: Adjust expected output.

Fixes #179.

* spot/twaalgos/dtwasat.cc: Add the check.
* tests/core/minusx.test: Test it.
* NEWS: Mention it.

* spot/misc/optionmap.hh, spot/misc/optionmap.cc (report_unused_options,
set_, set_set_): New methods.
* bin/autfilt.cc, bin/dstar2tgba.cc, bin/ltl2tgba.cc,
bin/ltl2tgta.cc: Call report_unused_options().
* tests/core/ltlcross2.test, tests/core/readsave.test: Fix typos in
options.
* tests/core/minusx.test: New file.
* tests/Makefile.am: Add it.
* NEWS: Mention this.