Setup greenkeeper with eslint-plugin-shopify

[mikkoh]

eslint-plugin-shopify has a peer dependency for eslint 3.3.x. The current version is at 3.4.x. It would be nice to have greenkeeper create Pull Requests to get updates for peer deps or locked modules. It's safe to do this... Although the way that this repo is setup as a mono package might cause issues with greenkeeper

[lemonmade]

I'm open to doing it, but I have a somewhat workable system of just going through every few weeks, bumping the versions on all the ESLint/ plugin dependencies, and adding configuration for all new rules as I do that.

[GoodForOneFare]

Reraised in the eslint-plugin-shopify repo.