add manifest to Rscript.exe

git-svn-id: https://svn.r-project.org/R/trunk@66867 00db46b3-68df-0310-9c12-caf00c1e9a41
move item to 3.1.2 patched

git-svn-id: https://svn.r-project.org/R/trunk@66868 00db46b3-68df-0310-9c12-caf00c1e9a41