Update sinon-chai to the latest version 🚀

[greenkeeper[bot]]

Version 2.9.0 of sinon-chai just got published.

Dependency	sinon-chai
Current Version	2.8.0
Type	devDependency

The version 2.9.0 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 sinon-chai. 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.

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Release Notes

2.9.0

Added support for Sinon ^2.1.0 (but not 2.0.0 due to sinonjs/sinon#1332).

Commits

The new version differs by 7 commits .

• 8f8c5a0 Version 2.9.0
• 46d2685 Add support and testing for Sinon ^2.1.0 (#89)
• 837d4c9 Add a test for objects in calledWith
• 66f4cee Fix link to Mocha
• 4397aa1 Add a test for undefined spy
• 05ab682 Update package.json keywords
• e2934a7 Make message tests more lenient for recent Sinon versions

See the full diff.

Not sure how things should work exactly?

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html) and of course you may always [ask my humans](https://github.com/greenkeeperio/greenkeeper/issues/new).

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Your Greenkeeper Bot :palm_tree:

[coveralls]

Coverage remained the same at 33.333% when pulling 387e5431d11bf384135ccc5e70194affb4441e15 on greenkeeper/sinon-chai-2.9.0 into 66bc1bbbb165a04cfde52a9edaf5df4b3ec33c90 on master.

[coveralls]

Coverage remained the same at 33.333% when pulling c83ac2dbfd18f01eea4921aa7ab2d9b7ad6f7129 on greenkeeper/sinon-chai-2.9.0 into 66bc1bbbb165a04cfde52a9edaf5df4b3ec33c90 on master.