yarn with wercker - package.json

yarn_with_wercker_package.json

{
  "name": "admin-website-frontend",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "eslint": "3.8.1",
    "eslint-config-airbnb": "12.0.0",
    "eslint-plugin-import": "2.0.1",
    "eslint-plugin-jsx-a11y": "2.2.3",
    "eslint-plugin-react": "6.4.1",
    "istanbul": "0.4.5",
    "react-scripts": "0.7.0"
  },
  "dependencies": {
    "enzyme": "2.5.1",
    "react": "15.3.2",
    "react-addons-test-utils": "15.3.2",
    "react-bootstrap": "0.30.5",
    "react-dom": "15.3.2"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "clean": "rm -rf build",
    "prebuild": "npm run clean",
    "test": "react-scripts test --env=jsdom",
    "test:ci": "CI=true npm t",
    "coverage": "CI=true npm t -- --coverage",
    "postcoverage": "istanbul check-coverage --statements 90 --functions 90 --branches 90 --lines 90",
    "eject": "react-scripts eject",
    "lint": "eslint src"
  },
  "jest": {
    "coverageThreshold": {
      "global": {
        "branches": 90,
        "functions": 90,
        "lines": 90,
        "statements": 90
      }
    }
  }
}