Script to upload an enterprise customer's store to S3 

This PR allows an enterprise customer to upload their store and logs to S3.

Notes:

* It's *nix only.  I don't believe that Windows ships with enough PowerShell goodness to do this OOB.   If this is successful we could write a new, improved version in Java.
* It's relying on S3 policy to be a write-only store for anonymous users.