Properly format and place title everywhere.

This was working more or less before, but during hasty changes last
night, I seem to have reverted it. I just tested this and it seems to
put titles in the right places.

Make image a link back to the front page.

Tony Sebro requested this:

<tony> The only thing that's counterintuitive to me is that the
"copyleft.org" logo should also be a link back to the front page [10:27]

Remove svg because users complain it's cut off.

This works in every browser I tried, but apparently it doesn't work in
some. Go figure.

Hack to get all menus to appear in right places.

The only way I could figure out how to get different output for
monolithic and section-based versions was to do this rather odd hack,
which uses tex4ht.usr to conditionally insert specific bootstrap HTML
for the mention that will allow proper formatting.

Hack tex4ht's overlib stuff to use jQuery tooltip

tex4ht supports "overlib" for footnote popups. The hack is pretty
straightforward; it dumps a Javascript area into a .js file that can
then be used by overlib to popup stuff.

This hack is to use that output to make the same thing work with jQuery
UI's tooltip widget.

Note that we run with overlib support first, then *without* it in the
Makefile setup. This is to force the needed .js file to be generated,
but make sure the HTML doesn't try to load overlib (which is default).

(This should be adapted as a patch to upstream tex4ht ultimately.)

Also included herein are improvements to the Makefile to build the HTML
output.