chore: test and lint before commit

Author: gajus

package.json

@@ -55,7 +55,7 @@
     "build-helper": "mkdir -p ./dist/browser && NODE_ENV=production babel ./src/getClassName.js --out-file ./dist/browser/getClassName.js --source-maps --no-babelrc --plugins transform-es2015-modules-commonjs,transform-flow-strip-types --presets es2015",
     "build": "rm -fr ./dist && NODE_ENV=production babel ./src --out-dir ./dist --source-maps --copy-files && npm run build-helper",
     "lint": "eslint ./src && flow",
-    "precommit": "npm run test",
+    "precommit": "npm run test && npm run lint",
     "test": " NODE_ENV=test mocha --require babel-core/register"
   },
   "version": "1.0.0"