Update standard to version 8.4.0 🚀

[greenkeeperio-bot]

Hello lovely humans,

standard just published its new version 8.4.0.

State	Update 🚀
Dependency	standard
New version	8.4.0
Type	devDependency

This version 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 standard.
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.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right?
Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project ✨

You rock!

🌴

---

The new version differs by 14 commits .

• 76d4e9d authors
• bc05f8b 8.4.0
• 4aad40c Merge pull request #656 from feross/feross/deps
• 73e2650 8.4.0 changelog
• 09ca0a5 Merge pull request #655 from feross/feross/654
• c0a4af5 eslint-plugin-promise@~3.0.0
• 9e1291c Update ESLint to 3.7.x
• 99a1d90 Dependencies: Use ~ instead of ^.
• 92743f4 Merge pull request #651 from feross/feross/webstorm
• a33cf31 Webstorm instructions should reference eslint-config-standard-jsx
• 12e3bef Fixes for PR #644
• d962c0f Merge pull request #644 from chenxsan/update-vscode-formatter
• d657d05 update text
• ab30aed update vscode editor extension

See the full diff.

---

This pull request was created by greenkeeper.io.

_{Tired of seeing this sponsor message? ⚡ greenkeeper upgrade}