message: Update to webpack 4.5
diff: "glob": "^7.1.2",
  "html-webpack-plugin": "^3.0.7",
  "imports-loader": "^0.7.1",
  - "istanbul-instrumenter-loader": "^3.0.0",
  + "istanbul-instrumenter-loader": "^3.0.1",
  "jsdom": "^11.3.0",
  "license-webpack-plugin": "^1.3.0",
  "lodash": "^4.17.4",
  "tslint-loader": "^3.6.0",
  "uglifyjs-webpack-plugin": "^1.2.4",
  "url-loader": "^1.0.1",
  - "webpack": "^4.1.1",
  + "webpack": "^4.5.0",
  "webpack-dev-server": "^3.1.1",
  "webpack-manifest-plugin": "2.0.0-rc.2",
  "webpack-merge": "^4.1.1",
  