* Add package for r-ada, update r-rpart version
Adds a package for r-ada.
Update the version for r-rpart because the previous version is
no longer at that URL. The previous version *is* in the Archive,
but list_url does not seem to be able to find it.
* Clean up FIXMEs (blush)
* Add several new R packages
* Add a few more R packages
* Update more versions
* Convert Package to RPackage
* Add a few more packages
* Add missing dependencies
