update (in the light of OS 10.9 aka Mavericks)

git-svn-id: https://svn.r-project.org/R/trunk@62936 00db46b3-68df-0310-9c12-caf00c1e9a41
quite a lot of this no longer works (if it ever did)

git-svn-id: https://svn.r-project.org/R/trunk@62938 00db46b3-68df-0310-9c12-caf00c1e9a41
typo

git-svn-id: https://svn.r-project.org/R/trunk@62940 00db46b3-68df-0310-9c12-caf00c1e9a41
.lm.fit() for the brave hearts and the benchmark lovers

git-svn-id: https://svn.r-project.org/R/trunk@62941 00db46b3-68df-0310-9c12-caf00c1e9a41