[Pasdoc-main] --spell-check command-line option

[Michalis K. <mic...@gm...>]

The new --spell-check option is a slightly better alternative for old
--aspell=LANGUAGE. It's equivalent to using --aspell with a language
code derived from the --language command-line parameter.

So, simply put, --spell-check simply activates spell-checking. It works
exactly like before, except it cooperates now with what you specified by
the --language, and now you don't have to care about your Aspell
language code. This magic was already done by spell-checking in
pasdoc_gui, now it's comfortable also from command-line.

You can also use --aspell with empty language code, but this looks ugly
on the command-line, and is the reason why I introduced a new option
--spell-check.

Docs on http://pasdoc.sipsolutions.net/SpellChecking

Michalis