message: add npm script for translations
diff: "scripts": {
  "dev": "gulp watch",
  "build": "gulp --production",
  + "translations": "gulp translations:compile",
  "client": "gulp client:run",
  "client-build-win": "gulp --production --client --arch=32",
  "client-build-osx": "gulp --production --client --arch=64",
  