update

git-svn-id: https://svn.r-project.org/R/trunk@67125 00db46b3-68df-0310-9c12-caf00c1e9a41
switch to document using external software on Windows

git-svn-id: https://svn.r-project.org/R/trunk@67127 00db46b3-68df-0310-9c12-caf00c1e9a41
require LEA_MALLOC

git-svn-id: https://svn.r-project.org/R/trunk@67129 00db46b3-68df-0310-9c12-caf00c1e9a41
clean up

git-svn-id: https://svn.r-project.org/R/trunk@67130 00db46b3-68df-0310-9c12-caf00c1e9a41