Merge branch '21-misc-cleanup' into 23-prim-formals
Merge branch '21-misc-cleanup' into 23
update help(Vectorize) for primitive having formals / rep.int
Merge branch '23-prim-formals' into 25
some initial cleanup of usemethod, removing code duplication
more mods to usemethod, avoiding work when it won't be needed
more pre-installs, defined findFunMethod
mods files
Merge branch '23-objects' into 25