Bump less from 2.7.3 to 3.0.1

[dependabot-preview]

Bumps less from 2.7.3 to 3.0.1.

Changelog

Sourced from less's changelog.

3.0.0

2018-02-10

• Fix calc() function to not do math operations on compile
• Rename Directive -> AtRule & Rule -> Declaration
• Cross-platform [**plugin**](https://github.com/plugin) loading! (Node & Browser)
• Numerous changes / improvements to plugin architecture
• Simplified API calls in plugins (less.atrule() vs new less.tree.AtRule())
• Property accessors ($width to refer to width: 300px value)
• Inline JavaScript disabled by default for security reasons (use [**plugin**](https://github.com/plugin))
• Improvements in Less error reporting
• Added feature: returning null / false from Less functions will remove that line
• Simple boolean() and if() functions added
• Bug fixes
• Removal of unnecessary nodes from API (like IE's alpha())

Commits

• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot ignore this [minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use [this|these] label[s] will set the current labels as the default for future PRs for this repo and language

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)

Finally, you can contact us by mentioning @dependabot.

[Kocal]

@dependabot rebase