Added basic configuratio to run nodemon

Added custom entry to our app with server.js
Added basic configutration to run nodemon: nodemon.json
Mocha setup and helpers

Added support to run tests with Mocha
Added basic configuration to run tests by scope. i.e:
    geddy jake tests:models
Added helpers to run similar tests, test/config.js
Added documentation about run tests
Beacons by minor or mayor and format

Added format to models and controllers
Return beacons by minor and mayor
Remove public folder from repo
Added mocha tests with chai

Added tests for models and controller's index action