[latexrefman] Twain's quotation

[Karl Berry]

    BTW, I found difficult translating correctly the quotation by Twain,

Personally I think a different, and more neutral, quote would be
appropriate. I see no reason to induce translation difficulties relating
to politics (in any direction) in a technical document.

    I also did a few other changes

It wasn't your bug, but "is" is missing before "non-discardable":

+The @code{*}-form inserts horizontal space that non-discardable.

    -* \frenchspacing::   Equal interword and inter-sentence space.
    +* \frenchspacing & \nonfrenchspacing::   Equal interword and inter-sentence space.

It is not desirable to rename nodes, but I guess it is needed for
consistency in this case. When it happens, please leave an anchor behind
with the old name. Otherwise existing links (outside this document) will
break.

End of comments from the peanut gallery :). -k