Update mocha to the latest version 🚀

[greenkeeper]

Version 3.5.0 of mocha just got published.

Dependency	mocha
Current Version	3.4.2
Type	devDependency

The version 3.5.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of mocha.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

---

Release Notes

free-as-in-freezing

3.5.0 / 2017-07-31

📰 News

• Mocha now has a code of conduct (thanks @kungapal!).
• Old issues and PRs are now being marked "stale" by Probot's "Stale" plugin. If an issue is marked as such, and you would like to see it remain open, simply add a new comment to the ticket or PR.
• WARNING: Support for non-ES5-compliant environments will be dropped starting with version 4.0.0 of Mocha!

🔒 Security Fixes

• #2860: Address CVE-2015-8315 via upgrade of debug (@boneskull)

🎉 Enhancements

• #2696: Add --forbid-only and --forbid-pending flags. Use these in CI or hooks to ensure tests aren't accidentally being skipped! (@charlierudolph)
• #2813: Support Node.js 8's --napi-modules flag (@jupp0r)

🔩 Other

• Various CI-and-test-related fixes and improvements (@boneskull, @dasilvacontin, @PopradiArpad, @Munter, @ScottFreeCode)
• "Officially" support Node.js 8 (@elergy)

Commits

The new version differs by 34 commits.

• 82d879f Release v3.5.0
• bf687ce update mocha.js for v3.5.0
• ec73c9a update date for release of v3.5.0 in CHANGELOG [ci skip]
• 1ba2cfc update CHANGELOG.md for v3.5.0 [ci skip]
• 065e14e remove custom install script from travis (no longer needed)
• 4e87046 update karma-sauce-launcher URL for npm@5
• 6886ccc increase timeout for slow-grepping test
• 2408d90 Make dependencies use older version of readable-stream to work around incompatibilities introduced by 2.3.0 on June 19th
• 68a1466 Try not clearing the env for debug in the integration test and see if that fixes Node 0.10 on AppVeyor; if need be, some other fix/workaround can be applied to handle whatever was up with debug without causing this issue
• 958fbb4 Update new tests to work in browser per test hierarchy reorganization
• 1df7c94 Merge pull request #2704 from seppevs/increase_test_coverage_of_mocha_js
• 1f270cd Stop timing out (#2889)
• 27c7496 upgrade to debug@2.6.8; closes #2859 (#2860)
• 50fc47d fix CI; closes #2867 (#2868)
• 1b1377c Add test for ignoreLeaks and fix descriptions

There are 34 commits in total.

See the full diff

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

---

Your Greenkeeper Bot 🌴