Commits on Feb 5, 2018

1. webpack@4 / webpack@next will support `package.json:sideEffects: … …

   …false` wherein libraries can indicate their ESM re-exports are side effect free and can be much more efficiently removed for smaller, faster final bundles.
   
   Lodash has already rolled out this change in
   https://unpkg.com/lodash-es@4.17.5/package.json
   
   ## Issues
   
   This was originally uncovered / discussed at length in:
   
   * webpack/webpack#1750
   
   This PR should resolve the issues discussed in:
   
   * FormidableLabs/victory#549
   * FormidableLabs/redux-little-router#262
   
   ## Changes
   
   * Add `sideEffects: false` to `package.json` to allow webpack4 tree-shaking to actually remove all unused code.
   
   > This PR has been automatically opened by your friendly [`multibot`](https://github.com/FormidableLabs/multibot/). The transform code and documentation is available at: https://github.com/FormidableLabs/multibot-examples/tree/master/transforms/webpack-side-effects

   

   ryan-roemer committed Feb 5, 2018
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