Upgrade `eslint-plugin-import` to 2.7.x

[efueger]

Customer request to upgrade eslint-plugin-import.

He mentioned:

We need to have the latest version of eslint-plugin-import (https://www.npmjs.com/package/eslint-plugin-import), which is currently v2.7.x since there is a added feature we need for our monorepo configuration.

and

The feature we need is support to specify the package.json for the no-extraneous-dependencies rule. The PR for that feature can be found here: import-js/eslint-plugin-import#685. It was released in the v2.7.0 version. The issue itself is thoroughly documented here: import-js/eslint-plugin-import#458.

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Looks like we're currently using 2.2.0

[dblandin]

@efueger Do you know which channel of this engine the customer is using?

stable is currently tracking eslint v3

[gdiggs]

Closing for now - we've updated a bunch of plugins recently. Let me know if this comes back up!