How to see the log/error messages of local dynamodb?

Hi there, I really like this plugin. It is much easier to setup the DB, create table and seed data than the official AWS guide. (http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.html).
Right now, there is one thing that I don't quite figure out yet, which is how to see the log message from the local DynamoDB we start?

In the official guide, after running `java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb
`, you can see error logs from there, but I don't quite get how to do that with this plugin.

The issue names no repository files or tests. Start by tracing the plugin's DynamoDB Local startup entry point and compare it with the official Java command shown here. Document how users can access local DynamoDB error logs, including any required options or output location; done when the instructions are reproducible.

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