Revert "documentation"

This reverts commit 6cabc5a8d70b5d83df87214d03e235b8e320c380.
Added the functionality to accept an object with URL and an output file name so that the downloader will rename the original file from the source.  I had an issue where two Datasets were programattically generated and had the same name so I needed this capability.  Additionally specifying an output name for a zip file will create a sub directory.  I added some type checking for URLs, but I'm not checking the paths very well.