* src/bin/ltl2tgba.cc, src/bin/randaut.cc: Catch exceptions
in main loop.
* src/tgbatest/ltl2tgba.test, src/tgbatest/randaut.test: Test
errors with unknown --dot argument.

* src/tgbaalgos/dotty.cc: Add option 's' to display SCCs.
* src/bin/dstar2tgba.cc, src/bin/common_aoutput.cc: Document it.
* src/tgbatest/neverclaimread.test: Test it.

destroy_atomic_prop_set() takes a parameter named 'as', and aparently
Swig reuses this name as-is, although it is a Python keyword.

* src/ltlvisit/apcollect.hh (destroy_atomic_prop_set): Rename the
parameter to please Swig on Arch Linux.

* src/bin/common_aoutput.hh, src/bin/common_aoutput.cc: Adjust to
support three kind of statistics printer, depending on whether the
tool input formulas, automata, or nothing.
* src/bin/randaut.cc, src/bin/autfilt.cc: Adjust.
* src/bin/ltl2tgba.cc: Use the common_aoutput printers.  The
--csv-escape option disappeared along the way, but it was not honored
anyway...

* src/bin/autfilt.cc: Move output options handling...
* src/bin/common_aoutput.cc, src/bin/common_aoutput.hh:... here.
* src/bin/randaut.cc: Use them.
* src/tgbatest/randaut.test: Test --name and --stats for randaut.

* src/bin/ltlgrind.cc: Adjust help text to match other tools.

for consistency with autfilt, randaut, and dstar2tgba

* src/bin/ltl2tgba.cc: Here.

for consistency with ltlfilt

* src/bin/autfilt.cc, src/bin/randaut.cc: Here.

* src/bin/options.py: New file.
* src/bin/Makefile.am: Distribute it.
* src/bin/README: New file.

* src/bin/autfilt.cc: Also accept '-u' for '--uniq'.
* src/bin/randaut.cc: Likewise, plus fix the unicity check.
* src/tgbatest/uniq.test: Really test it.

* src/bin/common_aoutput.cc, src/bin/common_aoutput.hh: New files...
* src/bin/autfilt.cc: ... extracted from here.
* src/bin/Makefile.am: Add them.

* src/tgba/tgba.hh: Declare a prop_set to specify the types.
* src/tgba/tgbagraph.hh: Use prop_set for all copy constructors.
* iface/ltsmin/ltsmin.cc, src/bin/autfilt.cc, src/bin/randaut.cc,
src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/closure.cc,
src/tgbaalgos/complete.cc, src/tgbaalgos/degen.cc,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dtgbacomp.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh,
src/tgbaalgos/sccfilter.cc, src/tgbaalgos/simulation.cc,
src/tgbaalgos/stutterize.cc, src/tgbatest/checkpsl.cc,
src/tgbatest/emptchk.cc, src/tgbatest/ltl2tgba.cc,
wrap/python/spot.i,src/graphtest/tgbagraph.test: Adjust all uses.

* src/tgbaalgos/dotty.cc: Specialize for tgba_digraph_ptr.
* src/tgba/tgbagraph.hh, src/tgbaalgos/dupexp.cc: Copy properties by
default when cloning an automaton.
* src/tgbatest/det.test, src/tgbatest/dstar.test,
src/tgbatest/ltl2tgba.test, src/tgbatest/monitor.test,
src/tgbatest/neverclaimread.test, src/tgbatest/tgbaread.test: Adjust
tests.

* src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh: Add an options
parameter.
* src/bin/randaut.cc, src/bin/autfilt.cc, src/bin/dstar2tgba.cc,
src/bin/ltl2tgba.cc, wrap/python/ajax/spot.in: Use it.
* src/tgbatest/det.test, src/tgbatest/dstar.test,
src/tgbatest/ltl2tgba.cc, src/tgbatest/monitor.test,
src/tgbatest/neverclaimread.test, src/tgbatest/tgbaread.test,
src/graphtest/tgbagraph.test: Adjust
because automata are now output horizontally.
* NEWS: Mention the change.

* src/bin/autfilt.cc: add option --uniq.
* src/bin/randaut.cc: add option --uniq.
* src/tgbatest/uniq.test: Test it.

* src/bin/autfilt.cc: Use isomorphism_checker.
* src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/are_isomorphic.hh: Wrap
are_isomorphic inside a class to keep the canonic version of the first
automaton between two calls, and use a more efficient algorithm in case
both automata are deterministic.
* src/tgbatest/isomorph.test: Add tests for deterministic automata.

* src/tgbaalgos/are_isomorphic.cc, src/tgbaalgos/are_isomorphic.hh,
src/bin/autfilt.cc: are_isomorphic now uses canonicalize. It returns a
bool, because the mapping cannot be deduced easily from the
canonicalized automaton.
* src/graph/graph.hh: Add equality operator to trans_storage_t
for easy comparison of transition vectors.
* src/tgba/tgbagraph.hh: Add equality operator to tgba_graph_trans_data
and to tgba_digraph.
* src/tgbaalgos/canonicalize.cc, src/tgbaalgos/canonicalize.hh:
New files.
* src/tgbaalgos/Makefile.am: Add them.
* src/tgbatest/isomorph.test: Test them.

* src/bin/autfilt.cc: Support %w.
* src/tgbatest/readsave.test: Test it.

* src/bin/autfilt.cc: Add these new options.
* src/tgbaalgos/stutterize.cc, src/tgbaalgos/stutterize.hh: Make it
possible to call sl() and sl2() without passing the set of atomic
propositions.
* src/tgbatest/stutter.test: New file.
* src/tgbatest/Makefile.am: Add it.

* src/tgba/tgbagraph.cc (merge_transition): Do it.
* src/tgbatest/readsave.test: Test it.
* src/bin/autfilt.cc: Fix statistics about the original
automaton when using --stats or --name.

* src/bin/autfilt.cc: Add these new options.
* src/tgbatest/readsave.test: Test them.

* src/bin/autfilt.cc: Implement this new option.
* src/tgbatest/readsave.test: Test it.

* src/bin/autfilt.cc: Here.
* src/tgbaalgos/stats.cc: Do not segfault if format is nullptr.
* src/tgbatest/readsave.test: Exercise --name, %M, and %m.

* src/bin/autfilt.cc: Add a --count option.
* src/tgbatest/randaut.test: Test autfilt's --count and --states.

* src/bin/autfilt.cc: Add a --states=RANGE option.
* src/bin/common_range.cc, src/bin/common_range.hh: Generalize
range_parse to allow an optional upper bound.

* src/hoaparse/hoaparse.yy: forward the error messages
from lbt_parse().
* src/hoaparse/hoascan.ll: Minor cleanups.
* src/tgbatest/lbttparse.test: Test it.

* src/ltlparse/ltlscan.ll: Skip comments.
* src/ltltest/ltlfilt.test: Test this.
* NEWS: Mention it.

* src/bin/autfilt.cc: Here.
* src/tgbatest/hoaparse.test: More tests.

* src/bin/autfilt.cc: Add support for %L.
* src/tgbatest/hoaparse.test: Test it.

the existing -q/--quiet option is renamed to --ignore-errors

* src/bin/ltlfilt.cc: Adjust option.
* src/bin/common_output.cc, src/bin/common_output.hh: Add a
quiet_output.
* bench/dtgbasat/prepare.sh: Rename -q to --ignore-errors..
* src/ltltest/remove_x.test: Use -q.
* NEWS: Mention this change.

* src/bin/autfilt.cc: Add option.
* src/tgbatest/det.test: Test it.

* src/tgbaalgos/are_isomorphic.cc: inline is_isomorphism() into
are_isomorphic() so that the reference vector is only sorted once,
and both vectors are only allocated once.