Fixes #4 and fixes #5.

* NEWS: Mention the change.
* src/kripkeparse/: Delete.
* README, src/Makefile.am, configure.ac: Adjust.
* src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh: Delete.
* src/kripke/kripkegraph.hh: New file.
* src/kripke/Makefile.am: Adjust.
* src/parseaut/parseaut.yy, src/parseaut/public.hh: Add
an option to read kripke structures.
* src/tests/bad_parsing.test: Delete.
* src/tests/Makefile.am: Adjust.
* src/tests/kripke.test, src/tests/parse_print_test.cc: Rewrite.
* src/tests/ikwiad.cc, src/tests/parseaut.test,
iface/ltsmin/modelcheck.cc, wrap/python/spot_impl.i: Adjust.

* m4/symbolic.m4: Here.  The -Bsymbolic option causes
segfault related to spot::formula::ff() returning a
pointer to some global.

* src/twaalgos/hoa.cc, src/twaalgos/hoa.hh: Implement it.
* NEWS, doc/org/hoa.org, src/bin/common_aoutput.cc: Document it.
* src/tests/readsave.test: Test it.

* src/twaalgos/dtwasat.cc: Choose the reference automaton based on its
size.  With this change, the last example of my LPAR'15 talk goes from
~7s to under 1s.
* NEWS: Mention it.

* src/twaalgos/dtgbasat.cc, src/twaalgos/dtgbasat.hh: Rename as...
* src/twaalgos/dtwasat.cc, src/twaalgos/dtwasat.hh: ... these.
* src/bin/autfilt.cc, src/tests/ikwiad.cc, src/twaalgos/Makefile.am,
src/twaalgos/postproc.cc, wrap/python/spot_impl.i: Adjust.
* NEWS: Mention the renamings.

* doc/org/spot.css: add tooltips for Python and C++.

* elisp/hoa-mode.el, elisp/Makefile.am, elisp/README: New files.
* debian/copyright, configure.ac, README, Makefile.am: Adjust.
* doc/org/init.el.in: Adjust to load hoa-mode.el.
* doc/org/spot.css: Add entries for HOA mode.
* doc/org/hoa.org, doc/org/ltldo.org, doc/org/oaut.org,
doc/org/tut20.org, doc/org/tut21.org, doc/org/tut22.org,
doc/org/tut30.org: Make the HOA outputs as HOA.

* NEWS: Mention it.
* wrap/python/spot.py: Rewrite the sat_minimize() function.
* wrap/python/tests/satmin.py: New file.
* wrap/python/tests/Makefile.am (TESTS): Add it.

* doc/mainpage.dox, doc/org/tut01.org: Here.

* src/twaalgos/dot.cc: Here.
* NEWS, src/bin/common_aoutput.cc: Document it.
* wrap/python/tests/automata.ipynb: Test it.

* .dir-locals.el: Use global-whitespace-mode instead of whitespace-mode.

* src/twaalgos/dot.cc: Here.
* wrap/python/tests/automata.ipynb: Test it.
* NEWS: Document this.

* wrap/python/spot.py: Here.
* wrap/python/tests/decompose.ipynb: Use it to simplify the code.

* NEWS: Mention the fixed bug.
* src/twaalgos/dot.cc: Fix.
* wrap/python/tests/decompose.ipynb: Use it.

Fixes #122.

* src/twaalgos/word.cc, src/twaalgos/word.hh: Here.
* src/bin/ltlcross.cc, src/bin/common_aoutput.hh: Adjust.
* NEWS: Mention the renaming.

* src/misc/escape.cc, src/misc/escape.hh (trim): Move...
* src/priv/trim.cc, src/priv/trim.hh: ... in these new files.
* src/priv/Makefile.am: Add them.
* src/parseaut/scanaut.ll, src/parsetl/scantl.ll: Adjust.

This avoids dynamic lookups to resolve symbols inside the library, but
disallows symbol interposition.

* m4/symbolic.m4: New file.
* buddy/m4/symbolic.m4: New link.
* configure.ac, buddy/configure.ac: Add AX_SYMBOLIC.
* buddy/src/Makefile.am, iface/ltsmin/Makefile.am, src/Makefile.am,
wrap/python/Makefile.am: Link with $(SYMBOLIC_LDFLAGS).

* configure.ac: Here.

* lib/Makefile.am, lib/alloca.in.h, lib/argmatch.c, lib/argmatch.h,
lib/argp-ba.c, lib/argp-eexst.c, lib/argp-fmtstream.c,
lib/argp-fmtstream.h, lib/argp-fs-xinl.c, lib/argp-help.c,
lib/argp-namefrob.h, lib/argp-parse.c, lib/argp-pin.c, lib/argp-pv.c,
lib/argp-pvh.c, lib/argp-xinl.c, lib/argp.h, lib/asnprintf.c,
lib/basename-lgpl.c, lib/c-ctype.c, lib/c-ctype.h, lib/c-strcase.h,
lib/c-strcasecmp.c, lib/c-strcaseeq.h, lib/c-strncasecmp.c,
lib/config.charset, lib/dirname-lgpl.c, lib/dirname.h, lib/dosname.h,
lib/errno.in.h, lib/error.c, lib/error.h, lib/exitfail.c,
lib/exitfail.h, lib/fcntl.in.h, lib/float+.h, lib/float.c,
lib/float.in.h, lib/getopt.c, lib/getopt.in.h, lib/getopt1.c,
lib/getopt_int.h, lib/gettext.h, lib/gettimeofday.c, lib/intprops.h,
lib/isatty.c, lib/itold.c, lib/localcharset.c, lib/localcharset.h,
lib/lstat.c, lib/malloc.c, lib/mbrtowc.c, lib/mbsinit.c, lib/memchr.c,
lib/mempcpy.c, lib/mkstemp.c, lib/mkstemps.c, lib/msvc-inval.c,
lib/msvc-inval.h, lib/msvc-nothrow.c, lib/msvc-nothrow.h, lib/pathmax.h,
lib/printf-args.c, lib/printf-args.h, lib/printf-parse.c,
lib/printf-parse.h, lib/progname.c, lib/progname.h, lib/quote.h,
lib/quotearg.c, lib/quotearg.h, lib/rawmemchr.c, lib/ref-add.sin,
lib/ref-del.sin, lib/secure_getenv.c, lib/size_max.h, lib/sleep.c,
lib/stat.c, lib/stdalign.in.h, lib/stdbool.in.h, lib/stddef.in.h,
lib/stdint.in.h, lib/stdio.in.h, lib/stdlib.in.h, lib/stpcpy.c,
lib/strcasecmp.c, lib/strchrnul.c, lib/streq.h, lib/strerror-override.c,
lib/strerror-override.h, lib/strerror.c, lib/string.in.h,
lib/strings.in.h, lib/stripslash.c, lib/strncasecmp.c, lib/strndup.c,
lib/strnlen.c, lib/strverscmp.c, lib/sys_stat.in.h, lib/sys_time.in.h,
lib/sys_types.in.h, lib/sys_wait.in.h, lib/sysexits.in.h,
lib/tempname.c, lib/tempname.h, lib/time.in.h, lib/unistd.c,
lib/unistd.in.h, lib/vasnprintf.c, lib/vasnprintf.h, lib/verify.h,
lib/vsnprintf.c, lib/wchar.in.h, lib/wctype.in.h, lib/xalloc-die.c,
lib/xalloc-oversized.h, lib/xalloc.h, lib/xmalloc.c, lib/xsize.h,
m4/00gnulib.m4, m4/absolute-header.m4, m4/alloca.m4, m4/argp.m4,
m4/codeset.m4, m4/configmake.m4, m4/dirname.m4, m4/double-slash-root.m4,
m4/errno_h.m4, m4/error.m4, m4/exponentd.m4, m4/extensions.m4,
m4/extern-inline.m4, m4/fcntl-o.m4, m4/fcntl_h.m4, m4/float_h.m4,
m4/getopt.m4, m4/gettimeofday.m4, m4/glibc21.m4, m4/gnulib-cache.m4,
m4/gnulib-common.m4, m4/gnulib-comp.m4, m4/gnulib-tool.m4,
m4/include_next.m4, m4/intmax_t.m4, m4/inttypes_h.m4, m4/isatty.m4,
m4/largefile.m4, m4/localcharset.m4, m4/locale-fr.m4, m4/locale-ja.m4,
m4/locale-zh.m4, m4/longlong.m4, m4/lstat.m4, m4/malloc.m4,
m4/math_h.m4, m4/mbrtowc.m4, m4/mbsinit.m4, m4/mbstate_t.m4,
m4/memchr.m4, m4/mempcpy.m4, m4/mkstemp.m4, m4/mkstemps.m4,
m4/mmap-anon.m4, m4/msvc-inval.m4, m4/msvc-nothrow.m4, m4/multiarch.m4,
m4/nocrash.m4, m4/off_t.m4, m4/pathmax.m4, m4/printf.m4, m4/quote.m4,
m4/quotearg.m4, m4/rawmemchr.m4, m4/secure_getenv.m4, m4/size_max.m4,
m4/sleep.m4, m4/ssize_t.m4, m4/stat.m4, m4/stdalign.m4, m4/stdbool.m4,
m4/stddef_h.m4, m4/stdint.m4, m4/stdint_h.m4, m4/stdio_h.m4,
m4/stdlib_h.m4, m4/stpcpy.m4, m4/strcase.m4, m4/strchrnul.m4,
m4/strerror.m4, m4/string_h.m4, m4/strings_h.m4, m4/strndup.m4,
m4/strnlen.m4, m4/strverscmp.m4, m4/sys_socket_h.m4, m4/sys_stat_h.m4,
m4/sys_time_h.m4, m4/sys_types_h.m4, m4/sys_wait_h.m4, m4/sysexits.m4,
m4/tempname.m4, m4/time_h.m4, m4/unistd_h.m4, m4/vasnprintf.m4,
m4/vsnprintf.m4, m4/warn-on-use.m4, m4/wchar_h.m4, m4/wchar_t.m4,
m4/wctype_h.m4, m4/wint_t.m4, m4/xalloc.m4, m4/xsize.m4,
tools/snippet/arg-nonnull.h, tools/snippet/c++defs.h,
tools/snippet/warn-on-use.h: Update.

* wrap/python/tests/decompose.ipynb: New file.
* wrap/python/tests/Makefile.am: Add it.
* src/twaalgos/strength.cc: Fix corner cases.
* src/tests/strength.test: Adjust corner case.
* NEWS, doc/org/tut.org: Mention the notebook.

* src/twaalgos/strength.cc, src/twaalgos/strength.hh
(decompose_stregth): New function.
* src/bin/autfilt.cc: Add a --decompose-strength option.
* src/bin/man/autfilt.x: Add bibliography.
* src/tests/strength.test: Test it.
* NEWS: Mention it.

* src/twaalgos/strength.cc, src/twaalgos/strength.hh (check_strength):
New function.
* src/bin/common_aoutput.cc: Add --check=strength.
* src/tests/strength.test: New file.
* src/tests/Makefile.am: Add it.
* doc/org/hoa.org, NEWS: Document it.

Fixes #47.

* src/twaalgos/strength.cc, src/twaalgos/strength.hh
(is_weak_automaton): New function.
(is_terminal_automaton): Generalize slightly.
* src/bin/autfilt.cc: Add options --is-terminal and --is-weak.
* src/tests/readsave.test: Add a test.
* NEWS: Update.

* src/twaalgos/safety.cc, src/twaalgos/safety.hh: Rename as ...
* src/twaalgos/strength.cc, src/twaalgos/strength.hh: ... these.
* src/bin/ltlfilt.cc, src/tests/ikwiad.cc, src/twaalgos/Makefile.am,
src/twaalgos/compsusp.cc, src/twaalgos/minimize.cc,
wrap/python/spot_impl.i: Adjust.

* src/twaalgos/safety.hh, src/twaalgos/safety.cc: Here.
* src/bin/ltlfilt.cc, src/tests/ikwiad.cc, src/twaalgos/minimize.cc,
wrap/python/ajax/spotcgi.in: Adjust.
* NEWS: Mention the change.

* src/twa/twa.hh: Store the terminal property.
* src/twaalgos/hoa.cc, src/parseaut/parseaut.yy: Add I/O for "terminal".
* src/twaalgos/ltl2tgba_fm.cc, src/twaalgos/minimize.cc: Set terminal
as apropriate.
* src/twaalgos/safety.cc: Use it.
* doc/org/tut21.org, doc/org/hoa.org, NEWS: Document it.
* src/tests/complement.test, src/tests/monitor.test,
wrap/python/tests/automata-io.ipynb: Adjust.

This fixes #119.

* doc/org/tut21.org, doc/org/hoa.org, NEWS: Document it.
* src/twa/twa.hh: Support it in automata.
* src/twaalgos/hoa.cc, src/parseaut/parseaut.yy: Add I/O support.
* src/twaalgos/minimize.cc, src/twaalgos/totgba.cc: Set weak
automata on output.
* src/tests/complement.test, src/tests/parseaut.test,
src/tests/readsave.test, src/tests/remfin.test, src/tests/sccsimpl.test,
src/tests/wdba2.test, wrap/python/tests/automata-io.ipynb: Adjust.

For the first part of #118.

* doc/org/tut21.org: Here.

* src/twaalgos/hoa.cc: Output do not output "unambiguous" if the
automaton is deterministic.  Add option "v" to cancel this restriction,
and also output "no-univ-branch".
* src/twaalgos/hoa.hh: Document the "v" option.
* src/tests/readsave.test: Test it.
* src/tests/unambig.test: Adjust for unambiguous not being output
if the automaton is deterministic.
* src/bin/common_aoutput.cc, NEWS: Document it.
* doc/org/hoa.org: Add a summary table about how properties are handled.
* src/twa/twa.hh (prop_deterministic): Setting this should also
set the unambiguous property.
* src/twaalgos/isunamb.cc: Simplify the property check.

* doc/org/hoa.org: Here.  Also mention --trust-hoa.

Fixes #117.

* wrap/python/spot.py, wrap/python/spot_impl.i: Add binding.
* wrap/python/tests/remfin.py: Add a small test case.
* NEWS: Mention it.

This fixes #116.

* src/twa/twa.hh: Rename those methods.
* NEWS: Document the renamings.
* doc/org/hoa.org, doc/org/tut21.org, src/parseaut/parseaut.yy,
src/tests/ikwiad.cc, src/twa/twagraph.hh,
src/twaalgos/are_isomorphic.cc, src/twaalgos/complete.cc,
src/twaalgos/degen.cc, src/twaalgos/dot.cc, src/twaalgos/dtbasat.cc,
src/twaalgos/dtgbasat.cc, src/twaalgos/hoa.cc, src/twaalgos/isdet.cc,
src/twaalgos/isunamb.cc, src/twaalgos/lbtt.cc,
src/twaalgos/minimize.cc, src/twaalgos/postproc.cc,
src/twaalgos/product.cc, src/twaalgos/randomgraph.cc,
src/twaalgos/remfin.cc, src/twaalgos/sbacc.cc,
src/twaalgos/simulation.cc, src/twaalgos/stutter.cc,
src/twaalgos/totgba.cc: Adjust.

This is a preliminary for the renaming suggested in #116.

* src/twa/twa.hh (prop_state_based_acc, prop_inherently_weak,
prop_deterministic, prop_unambiguous, prop_stutter_invariant,
prop_stutter_sensitive): Do not default the argument to true.
* src/parseaut/parseaut.yy, src/twaalgos/degen.cc,
src/twaalgos/dtbasat.cc, src/twaalgos/dtgbasat.cc,
src/twaalgos/minimize.cc, src/twaalgos/randomgraph.cc,
src/twaalgos/remfin.cc, src/twaalgos/sbacc.cc,
src/twaalgos/simulation.cc, src/twaalgos/totgba.cc,
wrap/python/tests/remfin.py: Adjust.

Fixes #115.

* src/parseaut/parseaut.yy: Set the property on the output automaton.
* src/tests/unambig.test: Add a test case.
* NEWS: Mention the fix.

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