This is a command line tool which allows management of "hidden" or not older versions of files for a version-enabled S3 bucket.
Project main page on SourceForge is here: https://sourceforge.net/projects/awsversionmgmt/ .
Read more about AWS S3 versioning here: http://aws.amazon.com/about-aws/whats-new/2010/02/08/versioning-feature-for-amazon-s3-now-available/
This tool was first released on Liv's Blog and the very first public download was offered in this post .