Update grunt-contrib-less to version 1.4.0 🚀

[greenkeeperio-bot]

Hello lovely humans,

grunt-contrib-less just published its new version 1.4.0.

State	Update 🚀
Dependency	grunt-contrib-less
New version	1.4.0
Type	devDependency

This version 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-less.
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.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right?
Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project ✨

You rock!

🌴

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The new version differs by 21 commits .

• 924189e Use path.basename for sourceMappingURL. (#322)
• 5501c3b Add a test case for calc and strictMath.
• a4ef5e1 Reduce lodash usage.
• a50a622 v1.4.0.
• 22720e2 Merge pull request #321 from gruntjs/deps
• 88daf05 Update dependencies, including less ~2.7.1.
• 1d749b0 Simplify code.
• 84ff7eb Reindent.
• e6e4c29 Merge pull request #308 from gruntjs/deps
• 30f5d4b v1.3.0.
• c116cc0 Update CI configs from the latest grunt-contrib-internal.
• 6ecb76e Update lodash.
• c8506f1 Ignore latedef for now as it is used in this task
• 6065301 Update grunt and devDeps to 1.0
• 3e26653 Update docs.

There are 21 commits in total. See the full diff.

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This pull request was created by greenkeeper.io.

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[futuremint]

Need to validate if the less version change affects our generated CSS in any way.