more use of keep.source = FALSE

git-svn-id: https://svn.r-project.org/R/trunk@65996 00db46b3-68df-0310-9c12-caf00c1e9a41
tweak wording

git-svn-id: https://svn.r-project.org/R/trunk@65997 00db46b3-68df-0310-9c12-caf00c1e9a41
Allow common Rd macros, either system-wide or in particular packages.

git-svn-id: https://svn.r-project.org/R/trunk@65998 00db46b3-68df-0310-9c12-caf00c1e9a41
Update NEWS and Rd files that use common macros

git-svn-id: https://svn.r-project.org/R/trunk@65999 00db46b3-68df-0310-9c12-caf00c1e9a41
Update for addition of Rd macro tools

git-svn-id: https://svn.r-project.org/R/trunk@66000 00db46b3-68df-0310-9c12-caf00c1e9a41
Missed commit

git-svn-id: https://svn.r-project.org/R/trunk@66001 00db46b3-68df-0310-9c12-caf00c1e9a41
another missed commit

git-svn-id: https://svn.r-project.org/R/trunk@66002 00db46b3-68df-0310-9c12-caf00c1e9a41