[texinfo-pretest] Problematic glyphs in HTML output

[Karl Berry]

    Very most browsers can digest &#....; for giving an arbitrary
    Unicode.

Maybe they can digest &#, but can they give reasonable output from it?
In particular, what does lynx do when you give the Unicode for dotless
i, etc.?  Can you make a test document and send it to the list, and
whoever is interested can try it in their favorite browser(s), so we can
get a reality check?

    I even think that one should fix the "Glyphs for Examples" like
    "==>" or "-!-", since there are Unicodes for them, too.

Indeed, Patrice and I wrote down the mappings for everything we could
find in the "HTML Cross-references" chapter.

Thanks,
karl