C js suggestions

- Automates creating the nock calls as opposed to making new ones every time
      - data for the nock calls lives in a file called nock-calls.js 

- returns err object directly as opposed to wrapping it 

- changes to the readme 
Excellent! This solves the testing problem and makes the flow clearer, too. I would tweak the formatting on this to not cram multiple lines together but functionally it is good to go.