Added Transporter boilerplate code and internal dataz
Added unit tests for Transporter

Currently fails because the Stacks in the 2D array aren't instantiated.
Added heightAt utility function to Transporter
Added test for heightAt Transporter method
Instantiated all stacks in 2D array in Transporter
Replaced deque.pop() with deque.removeLast() for correct popping behaviour
Merge pull request #11 from Rubykuby/transporter

Transporter created and tested