Dropwizard Metrics and Transaction Optimization

This release includes Dropwizard Metrics. At the moment, the only metric we have is a counter for each of the commands it's reporting to a CSV file, I just want to get a feel for what this is gonna look like and how it's gonna work, if it's even useful.

Additionally, transaction scopes were too large so we kept getting SQLITE_BUSY errors, I've reduced those so hopefully we can also reduce the number of collisions.

Closes #9 (closed)