Minor tweaks of spacing.
Move TeX trickery for typesetting of function descriptions to whereit belongs.
Typographical enhancements. Now, the documentation is typeset using a modifiedbook style.
Please look at this version and tell me your opinion. Especially I don't feelhappy about the spacing and (not) indenting of paragraphs.
Also, I've removed things like "fax" and "letter" from the LaTeX mapping file.