Update eslint-config-airbnb to the latest version 🚀

[greenkeeper[bot]]

The devDependency eslint-config-airbnb was updated from 16.1.0 to 17.1.1.

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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[codeclimate[bot]]

Code Climate has analyzed commit eab1b327 and detected 0 issues on this pull request.

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[greenkeeper[bot]]

• The devDependency eslint-config-airbnb was updated from 16.1.0 to 18.0.0.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency eslint-config-airbnb was updated from 16.1.0 to 18.0.1.

Update to this version instead 🚀

[greenkeeper[bot]]

• The devDependency eslint-config-airbnb was updated from 16.1.0 to 18.1.0.

Update to this version instead 🚀