mention example 103 for hook_movecode
use location.search.substring(1) instead of .replace()
roxygenize
there is nothing to do when dots[[1]] is of length 0, e.g. opts_chunk$set(list())
add a drop=TRUE argument in the $get() method so that the list may not be dropped when the returned element is of length 1
testit 0.3 will clean up the environment
typo chun --> chunk, thanks to @sje30
the vignette bug was fixed in R-devel r63908, so docco_classic and docco_linear can use .Rmd now

will have to close #578 after R 3.0.2 is released
fixes the regression bug reported by Graham Williams: https://groups.google.com/forum/#!topic/knitr/_I5rlo9tOeA
roxygenize
bump version