Update should to version 8.1.1 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

should just published its new version 8.1.1, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of should – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 9 commits .

• 81e052a Merge branch 'master' of github.com:shouldjs/should.js
• 7427774 Release 8.1.1
• c2537e3 Expose previous window.Should property manually
• e743d1c Update .zuul.yml
• 3317731 Update promise.js
• 047bfe3 Update should.js
• 57a2013 Release 8.1.0
• 4ad9880 Merge pull request #95 from seegno-forks/enhancement/add-date-type-assertion
• c37ecf9 Add Date type assertion

See the full diff.

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[codecov-io]

Current coverage is 97.88%

Merging #28 into master will not affect coverage as of 2af20c5

@@            master     #28   diff @@
======================================
  Files            2       2       
  Stmts          189     189       
  Branches        49      49       
  Methods          0       0       
======================================
  Hit            185     185       
  Partial          2       2       
  Missed           2       2       

Review entire Coverage Diff as of 2af20c5

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