message: Clean on prerelease
  To avoid any further problems where we ship build files with the
  wrong capitalisation because npm is dumb
diff: "lint": "eslint src/",
  "lintall": "eslint src/ test/",
  "clean": "rimraf lib",
  - "prepublish": "npm run build && git rev-parse HEAD > git-revision.txt",
  + "prepublish": "npm run clean && npm run build && git rev-parse HEAD > git-revision.txt",
  "test": "karma start --single-run=true --browsers ChromeHeadless",
  "test-multi": "karma start"
  },
  