Keep eslint-config-react-app's dependencies up-to-date.

Continuing on the issue brought up here: https://github.com/facebookincubator/create-react-app/issues/2631

I think eslint-config-react-app would be easier to use if its peer dependencies were up-to-date with their packages’ latest breaking changes. This just happened to me:

• Tried to lint a package extending “react-app”
• ESLint complains that I don’t have “react-app” installed
• Installed it with the usual npm i -g eslint-config-react-app
• ESLint complains again about the missing peer dependencies, which NPM in all its wisdom and usefulness won’t install for us automatically
• Supposedly install them all with the usual npm i -g eslint-plugin-flowtype eslint-plugin-import eslint-plugin-jsx-a11y eslint-plugin-react babel-eslint
• See weird error, “Definition for rule ‘jsx-a11y/href-no-hash’ was not found”
• Google and finally find these specific versions I need to install: https://github.com/facebookincubator/create-react-app/tree/master/packages/eslint-config-react-app#usage-outside-of-create-react-app

It’d be nice if the latest versions just worked, since I typically install the latest versions of packages. and I imagine other people do, too.

[gaearon]

It is not supported to use Airbnb config with CRA project without ejecting. In fact it’s not supported to use any extra config at all until you eject.

We’ll bump the version eventually, but the use case you rely on has never been supported in the first place.

[mmazzarolo]

Hey @gaearon, just to make sure I understood correctly: the eslint-plugin-react-app package release cycle is strictly tied to the react-scripts one, am I right?

Just asking because I’m maintaining eslint-plugin-react-app and this info might be useful.

Thanks!