message: Add concurrently and nodemon as dependencies.
diff: "chai-jest-snapshot": "^1.3.0",
  "chalk": "^2.3.2",
  "cli-highlight": "1.1.4",
  + "concurrently": "^3.5.1",
  "css-loader": "^0.28.11",
  "dotenv": "^5.0.1",
  "enzyme": "^3.1.0",
  "mocha-junit-reporter": "^1.16.0",
  "mocha-webpack": "^2.0.0-beta.0",
  "node-sass": "^4.5.3",
  + "nodemon": "^1.17.4",
  "null-loader": "^0.1.1",
  "nyc": "^10.0.0",
  "object-assign": "^4.1.1",
  