{
  "name": "contentful",
  "description": "Client for Contentful's Content Delivery API",
  "version": "1.1.1",
  "homepage": "https://www.contentful.com/developers/documentation/content-delivery-api/",
  "main": "index.es5.js",
  "repository": "git@github.com:contentful/contentful.js.git",
  "author": "Stephan Seidt <stephan@contentful.com>",
  "license": "MIT",
  "dependencies": {
    "axios": "^0.5.2",
    "contentful-resolve-response": "~0.1.0",
    "lodash": "~2.4.1"
  },
  "devDependencies": {
    "babel": "^4.7.16",
    "buster": "~0.7.6",
    "bluebird": "^2.0.0",
    "browserify": "~3.20.0",
    "envify": "~1.0.1",
    "saucie": "^0.1.0",
    "testem": "~0.6.2",
    "uglify-js": "^2.4.19"
  },
  "scripts": {
    "prepublish": "babel index.es6.js -o index.es5.js",
    "prepare-browser-test": "browserify -d -t envify -x buster test/helper.js > test/bundle-helper.js",
    "ci": "testem ci -P 6",
    "test": "testem"
  }
}

{
  "name": "contentful",
  "description": "Client for Contentful's Content Delivery API",
  "version": "1.1.1",
  "homepage": "https://www.contentful.com/developers/documentation/content-delivery-api/",
  "main": "index.es5.js",
  "repository": "git@github.com:contentful/contentful.js.git",
  "author": "Stephan Seidt <stephan@contentful.com>",
  "license": "MIT",
  "dependencies": {
    "axios": "^0.5.2",
    "contentful-resolve-response": "~0.1.0",
    "lodash": "~2.4.1"
  },
  "devDependencies": {
    "babel": "^4.7.16",
    "buster": "~0.7.6",
    "bluebird": "^2.0.0",
    "browserify": "~3.20.0",
    "envify": "~1.0.1",
    "saucie": "^0.1.0",
    "testem": "~0.6.2",
    "uglify-js": "^2.4.19"
  },
  "scripts": {
    "prepublish": "babel index.es6.js -s -o index.es5.js",
    "watch": "babel index.es6.js -s -w -o index.es5.js",
    "prepare-browser-test": "browserify -d -t envify -x buster test/helper.js > test/bundle-helper.js",
    "ci": "testem ci -P 6",
    "test": "testem"
  }
}

Add source maps and 'npm run watch' task
Add source maps and 'npm run watch' task
