Correctly Handle Long Segment IDs

We will now correctly handle segment identifiers that are longer than three characters. 😎

Code Cleanup and Maintenance

This release includes a couple of small bug fixes and some cleanup to the code.

• No more dependencies on Timbre, thank you @eerohele!
• No more explicit Clojure depdency
• References to data structures have been removed in favor of plain maps
• Now with tests!