Update standard to version 7.1.1 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

standard just published its new version 7.1.1, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of standard – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 4 commits .

• 6815a34 7.1.1
• a09ff14 changelog
• 24e2843 Merge pull request #531 from feross/0.10
• 8ea6a10 add back node 0.10, 0.12 support; fix warning

See the full diff.

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