Refactor eotk-get-logs-from-s3
Implement support on eotk-get-logs-from-s3 to emulate commands like
aws s3 --profile myprofile sync s3://my-eotk-logs logs/
Currently the script is dependent on API calls to determine the instance ID. A configuration option should be implemented to switch between this behavior and another where it's possible to supply a bucket name via command line.