Certain publishers prefer 7.5x9 inch paper size
Use the "book" doctype output. Try to get chapter starts on odd pages
Default cover image is JPEG.
Replace handbookish.css with scribe.css.

There is no handbookish.css to be found anywhere.  Tests were failing because of it.   All tests should be passing now.
Try to improve overall document structure with a2x.

Various clean-up needs to change (the <li> clean-up) or be added (header linking).

Also switch to extracting the TOC rather than building it ourselves.
Improved mobi generation

 * Switch to using epub as the base for mobi
 * Flatten the NCX file
 * Clean epub html for mobi production
 * Remove guard clause preventing epub generation
 * Better CSS (monospace text needs to be very small)
Use default font-size for monospace text.

Looks bad in epub
Put methods in clean code order
Remove no longer needed methods. Put do_site back where it belongs
Clean up after we're done
Don't generate PDF if already generated.
Generator for a zip containing the pdf, mobi and epub.
Prepare the site in a separate sub-directory.

Stays out of the way of other stuff.
Test fixes

 * Fix site html test.
 * The generators only return boolean on completion.
 * Other assertions test that the proper format is being generated.
Rename image to images in the example
Tests for epub, mobi, and ebook zip generators
TODO notes for outstanding work in PDF generation
Post commit-hook for mobi processing.

Useful for kindle-ifying mobi with Calibre or other such tools
Remove useless puts
Remove copy dest to deal with symbolic links