message: test script fix
diff: "fail-on-lib-changed": "if [ $(git diff --name-only lib) ]; then exit 1; fi",
  "test": "npm run lint && npm run cover",
  "mocha": "npm run build && mocha 'lib/test/**/*.test.js'",
  - "cover": "npm run build && istanbul cover _mocha -- lib/test/**/*.test.js -R spec",
  + "cover": "npm run build && istanbul cover _mocha -- 'lib/test/**/*.test.js' -R spec",
  "coveralls": "cat ./coverage/lcov.info | coveralls"
  },
  "repository": {
  