Fixed errors from move to AWS SDK 2.

I tried using the script and ran into some errors.  After some digging and research, I realized there was a bunch of code that could be deleted from the past commit that updated this to S3 SDK 2.  I deleted the unneeded areas.

I also added a comment by the bucket config to tell the user to add a trailing slash to the bucket name to avoid errors.

This pull request is in reference to my issue #3