how to identify nodejs framework

I am new to nodejs, I have been working on php and yii since long time, now i have got one project which is written in node js, It's already developed by another developer, I need to figure out which node framework they have used to build this project, So i can start learning things towards that framework, Someone please help me to figure out that, I need kick of this project real soon.

Folder Struhcture:
../bin
../config
../controllers
../events
../explorer
../helpers
../initializers
../middleware
../models
../node_modules
../routes
../schema
../var
../views

Dependencies:

    "when": "",
    "colors": "",
    "config": "",
    "restify": "",
    "node-uuid": "~1.4.0",
    "node-recurly": "",
    "node-recurlyjs-sign": "",
    "promise-object": "",
    "requester": "",
    "qs": "",
    "validator": "",
    "underscore": "",
    "bcrypt": "",
    "mysql": "",
    "bit-array": "",
    "node-hipchat": "",
    "mime": "~1.2.11",
    "filed": "~0.1.0",
    "async": "~0.2.9",
    "nodemailer": "0.3.x",
    "email-templates": "0.0.5",
    "handlebars": "~1.0.12",
    "time": "~0.9.2",
    "cluster": "~0.7.7",
    "ent": "~0.1.0",
    "log4js": ""