Merge branch '21-scalars' into 23-more-dotcode
Merge branch '16-t-varop-mm' into 23-more-dotcode
Merge branch '21-misc-cleanup' into 23-more-dotcode
Merge branch '21-misc-cleanup' into 23-more-dotcode
Merge branch '21-misc-cleanup' into 23-more-dotcode
Merge branch '21-misc-cleanup' into 23-more-dotcode
Merge branch '21-scalars' into 23-more-dotcode
Merge branch '22-more-scalars' into 23-more-dotcode
Merge branch '22-more-scalars' into 23-more-dotcode
Merge branch '22-more-scalars' into 23-more-dotcode
Merge branch '22-more-scalars' into 23-more-dotcode
Merge branch '23-seq-rep' into 26-misc
revise doc on functions that return unshared objects
Merge branch '23-more-dotcode' into 26-misc
Merge branch '23-more-dotcode' into 27-more-news
Merge branch '23-more-dotcode' into 28
get rid of structure name for VECTOR_SEXPREC_CONST, which mysteriously doesn't work with Rcpp
Merge branch '26-misc' into 27-more-news
Merge branch '26-misc' into 28
revert to rep.int being internal rather than primitive