Removing unused modules from index.js
Module: Upgrading express from v4.8.4 to v4.10.0
Module: Upgrading socket.io from v1.0.6 to v1.1.0
Module: Upgrading jshint from v2.5.3 to v2.5.6
Module: Upgrading mocha from v1.21.4 to v2.0.1
Module: Upgrading should from v4.0.4 to v4.1.0
Module: Upgrading istanbul from v0.3.0 to v0.3.2
Module: Upgrading supertest from v0.13.0 to v0.14.0
Removing NPM engine specification