two more posts
yet another presentation on knitr by L. Collado Torres
tweak the child documentation; eval=TRUE/FALSE no longer works
a new chunk option cache.vars
vignettes are on Bitbucket instead of Github now
credit also should also go to Henrik Bengtsson
Makefile has been removed; now point to a version in history
to pass R CMD check, you have to put knitr in Suggests