message: package: switch docker-build to use bundle script
diff: "build": "lerna run build",
  "test": "yarn build && lerna run test --since origin/master -- --coverage",
  "lint": "lerna run lint --since origin/master --",
  - "docker-build": "yarn build && docker build . -t spotify/backstage",
  + "docker-build": "yarn bundle && docker build . -t spotify/backstage",
  "create-plugin": "backstage-cli create-plugin",
  "release": "if [ \"$(git symbolic-ref --short HEAD)\" = master ]; then echo \"don't try to release master\"; exit 1; else lerna version --no-push; fi",
  "lerna": "lerna",
  