Issue on npm start

When you run npm start you get:

`TypeError: Cannot read property 'visitClass' of undefined
at monkeypatch (/Users/miguelmartin/projects/basura/react-examples/node_modules/babel-eslint/index.js:207:40)
at Object.exports.parse (/Users/miguelmartin/projects/basura/react-examples/node_modules/babel-eslint/index.js:380:5)
at parse (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint/lib/eslint.js:528:27)
at EventEmitter.module.exports.api.verify (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint/lib/eslint.js:652:19)
at processText (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint/lib/cli-engine.js:225:27)
at CLIEngine.executeOnText (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint/lib/cli-engine.js:678:26)
at lint (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint-loader/index.js:26:20)
at Object.module.exports (/Users/miguelmartin/projects/basura/react-examples/node_modules/eslint-loader/index.js:127:7)
at WEBPACK_CORE_LOADER_EXECUTION (/Users/miguelmartin/projects/basura/react-examples/node_modules/webpack-core/lib/NormalModuleMixin.js:155:71)
at runSyncOrAsync (/Users/miguelmartin/projects/basura/react-examples/node_modules/webpack-core/lib/NormalModuleMixin.js:155:93)`

There is a problem with the current version of ESLint. You should update eslint at least to 2.0.0 and babel-eslint to at least 5.0.0.