Use the babel preset react-app

[johangirod]

We could use the babel preset from create-react-app. It's pretty sure to be well updated, and should be perfect for our use. Yay ? Nay ?

https://github.com/facebookincubator/create-react-app/tree/master/packages/babel-preset-react-app

[christophehurpeau]

It doesn't work if we want to use all features of node 6.
The preset contains babel-preset-latest so and includes babel-preset-es2015

However, we should include in vitamin :

• babel-plugin-transform-react-jsx-source
• babel-plugin-transform-react-jsx-self

[christophehurpeau]

And also: useBuiltIns: true. There is a PR to make it work with presets: babel/babel#5250

[johangirod]

That settles it, then !