[Bioc-devel] Documentation on how to update a BioC experimental package?

It's been a while since I worked with experimental packages.  Where
can I find documentation on how to (Subversion) update our
AffymetrixDataTestFiles package with additional data files?  All I
know is that the SVN repository only contains a stub of the package
and http://www.bioconductor.org/developers/package-guidelines/#package-types
provides little information and basically only point to the devel
mailing list.

Thanks,

Henrik