add warnings to kruskal.test

git-svn-id: https://svn.r-project.org/R/trunk@66880 00db46b3-68df-0310-9c12-caf00c1e9a41
comment on random tests

git-svn-id: https://svn.r-project.org/R/trunk@66881 00db46b3-68df-0310-9c12-caf00c1e9a41
some coding style improvements

git-svn-id: https://svn.r-project.org/R/trunk@66883 00db46b3-68df-0310-9c12-caf00c1e9a41
clean up the two as.dendrogram.hclust (check)  entries


git-svn-id: https://svn.r-project.org/R/trunk@66884 00db46b3-68df-0310-9c12-caf00c1e9a41
update docs

git-svn-id: https://svn.r-project.org/R/trunk@66885 00db46b3-68df-0310-9c12-caf00c1e9a41
switch to new RNG default was at version 1.7.0, not 1.7.1


git-svn-id: https://svn.r-project.org/R/trunk@66886 00db46b3-68df-0310-9c12-caf00c1e9a41