check if dependencies are still needed

[hex13]

there are many dependencies in package.json

 "dependencies": {
    "ast-stream": "0.0.15",
    "coffee-script": "^1.10.0",
    "eslint": "^3.10.0",
    "eslint-plugin-react": "^6.6.0",
    "flow-parser": "^0.21.0",
    "glob": "^7.0.3",
    "html-flavors": "0.0.20",
    "lodash": "^4.11.2",
    "lupa": "0.3.3",
    "react": "^15.0.1",
    "react-dom": "^15.0.1",
    "react-redux": "^4.4.5",
    "redux": "^3.5.2",
    "redux-thunk": "^2.1.0",
    "through2": "^2.0.1",
    "vinyl": "^1.1.1",
    "vinyl-fs": "^2.4.3"
  },

I wonder if we need everything from this list.