refactor as Rake build; separate output artifacts from book source
update readme
adding kindlestrip python script as submodule
ignore the artifacts dir
add 'kindlestrip' as submodule; run it with rake
update README
further rationalization and beautification
correct suprescript tag
kill a couple of trivial warnings from kindlegen
report on kindlegen -c flag effects
binary from kindlegen 2.9: alphabetic header links in the index back to the jump table render correctly now; paging performance seems snappier on all devices FWIW