Update @types/node to the latest version 🚀

[greenkeeper[bot]]

Version 8.0.0 of @types/node just got published.

Dependency	@types/node
Current Version	7.0.32
Type	dependency

The version 8.0.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of @types/node. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

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Not sure how things should work exactly?

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html) and of course you may always [ask my humans](https://github.com/greenkeeperio/greenkeeper/issues/new).

---

Your Greenkeeper Bot :palm_tree:

[coveralls]

Coverage decreased (-0.02%) to 99.736% when pulling 03b5217307fc3df101ef1afbac098f44c4c717e2 on greenkeeper/@types/node-8.0.0 into b8346070aed5e00e242fa12a838f4eb341f24063 on master.

[greenkeeper[bot]]

Version 8.0.1 just got published.

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[greenkeeper[bot]]

Version 8.0.2 just got published.

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[greenkeeper[bot]]

Version 8.0.3 just got published.

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[greenkeeper[bot]]

Version 8.0.4 just got published.

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Version 8.0.5 just got published.

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Version 8.0.6 just got published.

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Version 8.0.7 just got published.

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Version 8.0.8 just got published.

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Version 8.0.9 just got published.

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Version 8.0.10 just got published.

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Version 8.0.11 just got published.

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Version 8.0.12 just got published.

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Version 8.0.13 just got published.

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[greenkeeper[bot]]

Version 8.0.14 just got published.

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