message: Update devDependencies.
diff: "url": "http://www.bentley.com"
  },
  "devDependencies": {
  - "@bentley/bemetalsmith": "^1.17.4",
  - "@bentley/bentleyjs-tools": "^1.1.5",
  - "@types/chai": "^4.0.10",
  + "@bentley/bemetalsmith": "^1.18.4",
  + "@bentley/bentleyjs-tools": "^2.2.1",
  + "@types/chai": "^4.1.2",
  "@types/chai-as-promised": "^7.1.0",
  - "@types/mocha": "^2.2.45",
  - "@types/sinon": "^4.1.3",
  + "@types/mocha": "^2.2.48",
  + "@types/sinon": "^4.1.4",
  "chai-as-promised": "^7.1.1",
  - "nyc": "^11.4.1",
  + "nyc": "~11.4.1",
  "rimraf": "^2.6.2",
  - "sinon": "^4.3.0",
  + "sinon": "^4.4.2",
  "ts-node": "^3.3.0",
  "typescript": "^2.6.1"
  },
  