message: Update versioning script to work with Lerna release
diff: "scripts": {
  "test": "../../node_modules/.bin/mocha --opts ../../mocha.opts",
  "update-version": "node -e \"console.log('module.exports = \\'' + require('./package.json').version + '\\';')\" > lib/version.js",
  - "version": "npm run update-version && git add lib/version.js && git commit -am \"Updating version\""
  + "version": "npm run update-version"
  },
  "engines": {
  "node": ">= 6"
  