Suggested in #299.
* doc/org/autfilt.org, doc/org/concepts.org, doc/org/dstar2tgba.org,
doc/org/genaut.org, doc/org/hierarchy.org, doc/org/hoa.org,
doc/org/ltl2tgba.org, doc/org/ltl2tgta.org, doc/org/ltlcross.org,
doc/org/oaut.org, doc/org/randaut.org, doc/org/satmin.org,
doc/org/tut11.org, doc/org/tut23.org, doc/org/tut24.org,
doc/org/tut30.org, doc/org/tut31.org, doc/org/tut50.org,
doc/org/tut51.org: Adjust all dot outputs to produce svg.
* doc/org/arch.tex, doc/org/hierarchy.tex, doc/org/satmin.tex: Adjust
to produce a pdf with 12pt text.
* doc/Makefile.am: Adjust the generation of arch.svg, hierarchy.svg,
and satmin.svg: From above.
* doc/org/.dir-locals.el.in, doc/org/init.el.in: Adjust dot arguments
to produce svg with 12pt text (the default was 14pt).
* doc/org/spot.css: Use Lato as the main font for consistency with
automata.
* HACKING: pdf2svg is now required to build the doc.
The new ob-dot.el installed by 15ea2e66e8
makes all the sed escaping useless (and actually harmful).
* doc/org/ltl2tgta.org, doc/org/oaut.org: Fix those.
Part of #176.
* doc/org/autfilt.org, doc/org/compile.org, doc/org/concepts.org,
doc/org/csv.org, doc/org/dstar2tgba.org, doc/org/genltl.org,
doc/org/hoa.org, doc/org/install.org, doc/org/ioltl.org,
doc/org/ltl2tgba.org, doc/org/ltl2tgta.org, doc/org/ltlcross.org,
doc/org/ltldo.org, doc/org/ltlfilt.org, doc/org/ltlgrind.org,
doc/org/oaut.org, doc/org/randaut.org, doc/org/randltl.org,
doc/org/satmin.org, doc/org/tools.org, doc/org/tut.org,
doc/org/tut01.org, doc/org/tut02.org, doc/org/tut03.org,
doc/org/tut10.org, doc/org/tut20.org, doc/org/tut21.org,
doc/org/tut22.org, doc/org/tut30.org, doc/org/upgrade2.org: Here.
* doc/org/index.org: Also add keywords in case it is useful, and
use a more descripting title for search engines.
The dotty output changed to be horizontal, and also
the acceptance sets are now numbers.
* doc/org/dstar2tgba.org, doc/org/ltl2tgba.org, doc/org/ltl2tgta.org,
doc/org/satmin.org: Adjust these four.
We used to set PATH in emacs, but because babel executes "sh" via
shell-command, the configuration of the main shell may supersedes ours.
* doc/org/ltl2tgba.org, doc/org/ltl2tgta.org, doc/org/ltlcross.org,
doc/org/ltlfilt.org, doc/org/randltl.org, doc/org/tools.org,
doc/org/genltl.org: Move all local-file variable to...
* doc/org/.dir-locals.el: ... here. And also set the PATH
in org-babel-sh-command.
* doc/org/init.el.in: Set the PATH in org-babel-sh-command.
