Update grunt-contrib-cssmin to the latest version 🚀

[greenkeeper]

Version 2.2.0 of grunt-contrib-cssmin just got published.

Dependency	grunt-contrib-cssmin
Current Version	2.0.0
Type	dependency

The version 2.2.0 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 grunt-contrib-cssmin.
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.

---

Commits

The new version differs by 3 commits0.

• 5404a77 Update clean-css to v4.1.1.
• f3e3987 Set required Node.js version to >=4 since clean-css 4.x requires that.
• 22471fe Update URL to clean-css repo.

false

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 🌴

[greenkeeper]

Version 2.2.1 just got published.

Update to this version instead 🚀

Commits

The new version differs by 2 commits.

• 07bf23c v2.2.1.
• eb66929 Use new rebase configuration for clean-css@4 (#296)

See the full diff

[greenkeeper]

Version 3.0.0 just got published.

Update to this version instead 🚀

Commits

The new version differs by 2 commits.

• 052b0cb v3.0.0.
• 142e850 Update all deps and require Node.js >= 6.

See the full diff