Support eslint v4

[michaelgmiller]

When installing with eslint@4.0.0, I get:
npm WARN eslint-plugin-react-native@2.3.1 requires a peer of eslint@^3.17.0 but none was installed.

[Intellicode]

I'm planning to update as soon as my dependencies are also compatible with eslint 4.0.0, so far there are a few that are not compatible yet.

[noamokman]

Whats missing?

[Intellicode]

Basically, I'm using eslint-plugin-airbnb to lint the plugin itself, but it might not be worth it anymore to use it since it delays quickly updating to newer versions.

[kelset]

Airbnb just released a new version, 15.1.0, that supports v4 - is there any other dependency you are waiting on? Would a PR help? Can't wait to test the new eslint :3

[ljharb]

@Intellicode nothing wrong with letting a new major version of eslint bake for a little while :-p

[Intellicode]

@kelset done!

@bspaulding, I had trouble getting your unit tests with regex options to work with the new eslint plugin, so please let me know if I broke something!

[sibelius]

any progress on this?

[sibelius]

react-native/no-inline-styles is working on v4

react-native/no-unused-styles is not

[Intellicode]

@sibelius can you provide details?

[sibelius]

it started working again, I restarted my webstorm

[bspaulding]

@Intellicode Sorry I just saw this notification, just updated to eslint 4 with 3.1.0 of this, LGTM. 👍