Update to Wepback 3

[pirelenito]

The biggest improvement it brings is scope hoisting:

Because scope hoisting will remove function wrappers around your modules, you may see some small size improvements. However, the significant improvement will be how fast the JavaScript loads in the browser.

For more information check: https://medium.com/webpack/webpack-3-official-release-15fd2dd8f07b

And although it is a major release of Webpack, it isn't exactly an API breaking change, so upgrading should be fairly smooth. I guess the v9 release will be outpaced pretty quickly.

[pirelenito]

@npejo you have a pretty big project with Sagui, could you try it out and post what improvements it brings in comparison with v9? ❤️

[pirelenito]

It looks like we might encounter an issue: https://mobile.twitter.com/i/web/status/877378116028514304

[pirelenito]

webpack-contrib/extract-text-webpack-plugin#548

[npejo]

Thanks for preparing this branch @pirelenito, I will check it on our project.

[xaviervia]

I’m labeling this as in progress until we investigate that issue more

[pirelenito]

We're just waiting for the 3.0.0 release of extract-text-webpack-plugin, that should be out by tomorrow.