Update to eslint v5

[bjankord]

Issue Description

eslint v5 has been released: https://eslint.org/blog/2018/06/eslint-v5.0.0-released
We should update our peerDep to use v5 and associated dependencies. We'll likely need to wait on our dependencies to release compat versions with v5.

With this we need to check and see if there are eslint v5 compatible releases for the following:

• "eslint-config-airbnb" (waiting on release, v17 has been released, however I'm not sure if this is compat with eslint 5 - more info here)
• "eslint-plugin-compat" (Issue logged)
• "eslint-plugin-import" (eslint v5 support added in v2.13.0)
• "eslint-plugin-jsx-a11y" (eslint v5 support set to be added in v6.1.0)
• "eslint-plugin-react" (eslint v5 support added in v7.10.0)

Issue Type

• New Feature
• Enhancement
• Bug
• Other

Expected Behavior

Config uses eslint v5 and related compatible plugins

[teriu]

Support for ESLint v5 just dropped in eslint-plugin-jsx-a11y (6.1.0 is out)

[emilyrohrbough]

Thanks @teriu!

[noahbenham]

Thank you for keeping the ecosystem current. Minor aside, I've added Cerner to Airbnb's In The Wild.

[dv297]

Looks like the issue linked for eslint-config-airbnb was closed so probably good to go. Also checked the package.json of eslint-config-airbnb, lists || ^5.3.0

https://github.com/airbnb/javascript/blob/eslint-config-airbnb-v17.1.0/packages/eslint-config-airbnb/package.json#L76

[bjankord]

Resolved in #10
Forgot to close this via the PR.