Merge branch 'mauro' into docs-mw

This series improve the output at process/maintainers: instead of a
pure enriched text, the maintainer's file content is now converted
to a table, and has gained a javascript to allow filtering entries.

The initial patches change the logic to split parsing from
output generation. Then, everything is stored into a dict at
the parsing phase, and ona header description variable.

This way, it is easier to adjust the output handler to produce
a more structured document. Right now, the entries are sorted
alphabetically, per subsystem's name(*).

(*) Currently, MAINTAINERS file has several entries not sorted.
    One has to run:

	 scripts/parse-maintainers.pl --input MAINTAINERS --output MAINTAINERS.new

    to sort it.