do not export anova.glm, plot.spec

git-svn-id: https://svn.r-project.org/R/trunk@63617 00db46b3-68df-0310-9c12-caf00c1e9a41
no longer export print.anova
warn about copying anova.[g]lmlist, remove obsolete comment


git-svn-id: https://svn.r-project.org/R/trunk@63619 00db46b3-68df-0310-9c12-caf00c1e9a41
remove alias for unexpeorted function

git-svn-id: https://svn.r-project.org/R/trunk@63620 00db46b3-68df-0310-9c12-caf00c1e9a41
Moved IS_SCALAR to Rinternals.h, with version that works in 32-bit builds.


git-svn-id: https://svn.r-project.org/R/trunk@63621 00db46b3-68df-0310-9c12-caf00c1e9a41