{
  "name": "universal-react",
  "version": "1.0.0",
  "description": "Universal React.js starter with the minimum possible code",
  "main": "lib/server.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "scripts": {
    "build": "babel src --out-dir lib --plugins transform-react-jsx --presets es2015",
    "start": "npm run build && node lib/server.js"
  },
  "author": "Vance Lucas",
  "license": "BSD",
  "dependencies": {
    "express": "^4.13.3",
    "react": "^0.14.2",
    "react-dom": "^0.14.2"
  },
  "devDependencies": {
    "babel-preset-es2015": "^6.1.2",
    "babel-plugin-transform-react-jsx": "^6.0.18"
  }
}

{
  "name": "universal-react",
  "version": "1.0.0",
  "description": "Universal React.js starter with the minimum possible code",
  "main": "lib/server.js",
  "scripts": {
    "build": "./node_modules/babel-cli/bin/babel.js src --out-dir lib --plugins transform-react-jsx --presets es2015",
    "start": "npm run build && node lib/server.js"
  },
  "author": "Vance Lucas",
  "license": "BSD",
  "dependencies": {
    "express": "^4.13.3",
    "react": "^0.14.2",
    "react-dom": "^0.14.2"
  },
  "devDependencies": {
    "babel-cli": "^6.1.2",
    "babel-plugin-transform-react-jsx": "^6.0.18",
    "babel-preset-es2015": "^6.1.2"
  }
}

Add babel-cli dev dep and use it for build
Add babel-cli dev dep and use it for build
