Update rollup-plugin-terser to the latest version 🚀

[greenkeeper[bot]]

The devDependency rollup-plugin-terser was updated from 3.0.0 to 4.0.0.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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Your Greenkeeper bot :palm_tree:

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 4.0.1.

Update to this version instead 🚀

Release Notes for v4.0.1

Fixed node 6 support by removing object spread operator.

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 4.0.4.

Update to this version instead 🚀

Release Notes for v4.0.4

In this release unexpected token error when using arrow functions was fixed and 1mb dependency was removed. Big thanks to @zech

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 5.0.0.

Update to this version instead 🚀

Release Notes for v5.0.0

Upgrade to terser v4. Read more here

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 5.1.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 5.1.1.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 5.1.2.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency rollup-plugin-terser was updated from 3.0.0 to 5.1.3.

Update to this version instead 🚀