Updated documentation of rwl.stats() / summary.rwl().  Andy: I believe
there is no way around '...'.  All arguments of a generic function
need to be included in a method implementing the generic.  They also
need to be documented, whether used or not (and this can also be
documented...).


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@773 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Patch from Christian Zang.
Removed rescaling of transformed series in powt().


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@774 edb9625f-4e0d-4859-8d74-9fd3b1da38cb