<nclude> and <late-inc>: new attribute subs-only
new module stog_of_latex to share between command line tool and stog engine
share default sectionning, back to previous way of handling counter-name, experimental support for latex-body
use latex defs in <latex-body> command
rename attribute latex:packages to latex-packages
update changes
update doc
multi-elt is now a plugin
continue doc
continue doc
continue doc
add example for stog_dot plugin
new command prefix-svg-ids, new module stog_svg, used in stog_dot and stog_asy
more doc on dot plugin
add doc about stog_asy plugin
add latex2stog page; fix toc of stog_writing
improve css