add grSoftVersion

git-svn-id: https://svn.r-project.org/R/trunk@67047 00db46b3-68df-0310-9c12-caf00c1e9a41
add \donttest on variable output

git-svn-id: https://svn.r-project.org/R/trunk@67048 00db46b3-68df-0310-9c12-caf00c1e9a41
fixes for Windows

git-svn-id: https://svn.r-project.org/R/trunk@67049 00db46b3-68df-0310-9c12-caf00c1e9a41
grSoftVersion for Windows

git-svn-id: https://svn.r-project.org/R/trunk@67050 00db46b3-68df-0310-9c12-caf00c1e9a41
tweak wording

git-svn-id: https://svn.r-project.org/R/trunk@67051 00db46b3-68df-0310-9c12-caf00c1e9a41
update

git-svn-id: https://svn.r-project.org/R/trunk@67052 00db46b3-68df-0310-9c12-caf00c1e9a41
tweak for case without cairographics

git-svn-id: https://svn.r-project.org/R/trunk@67053 00db46b3-68df-0310-9c12-caf00c1e9a41
expand grSoftVersion() on Unix

git-svn-id: https://svn.r-project.org/R/trunk@67054 00db46b3-68df-0310-9c12-caf00c1e9a41
more details

git-svn-id: https://svn.r-project.org/R/trunk@67055 00db46b3-68df-0310-9c12-caf00c1e9a41
cover cases of no X11 or not libtiff

git-svn-id: https://svn.r-project.org/R/trunk@67056 00db46b3-68df-0310-9c12-caf00c1e9a41
another corner case: no libtiff

git-svn-id: https://svn.r-project.org/R/trunk@67057 00db46b3-68df-0310-9c12-caf00c1e9a41