doctemplate supports epub

[Kyle Nitzsche]

Doctemplate (lp.net/doctemplate) now supports localized epub output with 
a single command! (epub is a widely-used ebook format.)

That's in addition to html (two versions with different 
styling/navigation), pdf, and docbook.

The doctemplate idea is:  let doctemplate handle all the build and techy 
bits and let writers write. And use standard customization layers for 
visual design for each output type.

You can install it from this ppa:
https://launchpad.net/~doctemplate-team/+archive/ppa

Then, create an article project in a new directory with:
doctemplate_setup_article

Build commands (from project root dir):
./make_html
./make_html-site
./make_pdf
./make_docbook
./make_epub

Update pots and pos from source:
./update_pots_pos

Built localized outputs are in build/$type/$lang

Note: Launch epub output with FBReader app as follows:
FBReader build/epub/en/OEBPS/content.opf

Each output type (html, pdf, epub, pdf/fop) has built-in, standard 
customization layers for parameters and xsl template overrides in each 
project so you can modify visual design beyond the defaults.

Still working on the doctemplate-user-guide!

cheers,
Kyle