Update dependencies and fix unit tests

[pvdlg]

No description provided.

[pvdlg]

Travis seems to be fixed 🎉

[sindresorhus]

Yay!

[graingert]

@sindresorhus @pvdlg can you make a release of this please?

[sindresorhus]

Done: https://github.com/xojs/xo/releases/tag/v0.22.0

[antonmedv]

Installed xo:

"devDependencies": {
    "xo": "^0.22.0"
  }

But still got ✖ Parsing error: Cannot read property ecmaFeatures of undefined.
Fresh CRA and XO.

[antonmedv]

npm ls eslint-plugin-node
***
└─┬ [email protected]
  └── [email protected]

[vinkla]

I'm also having the same issue as @antonmedv with version ^0.23.0 and create-react-app.