feature request(s)

[yonahforst]

related to #22, would be great if config objects let us optionally append the tablename to the prefix. maybe like:

let config = {
    //...
    S3Prefix: 'STRING_VALUE', /* optional */
    S3PrefixAppendTable: 'BOOL_VALUE', /* optional - default false */
   //...
};

Also, performance on full backups seems quite slow (compared to dynamodb-replicator). Have you looked into using streams?

Overall, I'm excited about using this library instead of 'dynamo-replicator' because of it's small size/scope and the included point-of-time restore feature. The lack of tests, however, make me hesitant about using it in production.