perserve the original examples without captions
cosmetic
news for #687; closes #657
this faq does not make sense; nobody has ever asked this question
use \code{} on \link{} is it is an R object
roxygenize
RStudio may depend on the error message format when parsing it (for error navigation), so consistently return two numbers even if n0 >= n1
inline expressions do not permit errors any more; closes #651
cosmetic
bump version