Move portion of Express.js logic from server.js to dbHelper.js
Renamed dbHelper to db.js, moved to configs, updated require paths. Server runs.
Updated 'app' reference within module.export functions so that 'app'(Express.js) can be referenced in db.js, etc.
Updating Git index to reflected deltion of serverjs and dbHelper.js
Significant architecture updates with Larry's help. Added models folders for models. Add configs for environment, middleware and routes.
Merge pull request #3 from rstellar/master

Breaking things. See commit history.