Added the node & npm versions to the package.json
Changed app version from 0.1 to 0.1.7 as npm expects a semantic version
Bumping the required mongodb version from 0.9.6 to 0.9.7
Simplified config.js to use environmental vars.

- To deploy to heroku, it was easier to use environmental vars
  to configure private/sensitive information for the app.
- Load configs directly by helpers module, instead of being passed by
  the api.
Moved config
Gotta find this stupid heroku error
Why are you not working?
Still no luck :(
MongoDB package version was wrong in package.json