Added additional feature spec and updated the World to insert data before each scenario and truncate the collection after each scenario.
Updated the GET /thought/:id route to take request and response objects as the next step towards making it a real express route. It still needs to be hooked into the server.
Replaced the dummy /thought route spec to use the thought-route.getById route. It still needs major work, but it is at least sending a basic response and is wired up in server