Version 4 of node.js has been deprecated

[greenkeeper]

Version 4 of Node.js (code name Argon) has been deprecated! 🚑

This means that it is no longer maintained and will not receive any more security updates. Version 6 (Boron) is now the lowest actively maintained Node.js version.
To see what effect this update from 4 to 6 would have on your code, Greenkeeper has already created a branch with the following changes:

• The engines config in 1 of your package.json files was updated to the new lowest actively supported Node.js version

If you’re interested in removing support for Node.js 4 from this repo, you can open a PR with these changes.

You can find out more about the deprecation and possible update strategies in this Node.js foundation announcement.

More information on this issue

Greenkeeper has checked the engines key in any package.json file, the .nvmrc file, and the .travis.yml file, if present.

• In engines, any occurance of 4 was replaced with 6
• .nvmrc was updated to Node.js 4
• .travis.yml was only changed if there was a root-level node_js key that specified Node.js 4. In this case, 4 was replaced with 6. We didn’t touch job or matrix configurations because these tend to be quite specific and complex, and it’s difficult to infer what the intentions were.

For many simpler .travis.yml configurations, these changes should already suffice, but depending on what you’re doing it may require additional work or may not be applicable at all. We’re also aware that you may have good reasons to continue supporting Node.js 4, which is why this was sent as an issue and not a pull request. Feel free to delete it without comment, I’m a humble robot and won’t feel rejected 🤖

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