Update licensor to the latest version 🚀

[greenkeeper]

Version 4.0.0 of licensor just got published.

Dependency	licensor
Current Version	3.1.0
Type	devDependency

The version 4.0.0 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 licensor.
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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Commits

The new version differs by 21 commits.

• 41d904a 4.0.0
• e847b20 Set package.json license properties
• 532a2e1 Delete generated files after testing
• 3731057 Accept optional license identifier argument
• d390bbf Use docopt
• 34f4339 Configure Travis CI to test on more Node.js versions
• 1d0a358 Only write NOTICE with --notice
• c360508 Use apache-2.0-header
• 764d2d7 tap@^10.7.2
• 7fbfff1 standard@^10.0.3
• 6aaa36a glob@^7.1.2
• 9845b3e nopt@^4.0.1
• 10d0df7 normalize-package-data@^2.4.0
• 184c817 Append header comments after shebangs (closes #16)
• a0be5df Use fs.readFileSync without fs.accessSync

There are 21 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.

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Your Greenkeeper Bot 🌴

[codecov-io]

Codecov Report

Merging #81 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #81   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           3      3           
  Lines          49     49           
  Branches       12     12           
=====================================
  Hits           49     49

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