message: Change prepublish script to prepare
diff: "start": "npm run clean && webpack --progress --watch",
  "clean": "rm -rf lib",
  "build": "npm run clean && tsc && webpack --mode=production",
  - "prepublish": "npm run build",
  + "prepare": "npm run build",
  "test": "npm run lint && TZ=UTC jest",
  "test:watch": "TZ=UTC jest --watch --collectCoverage=false",
  "lint": "tslint -p tsconfig.json",
  