Update lodash to version 4.0.0 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

lodash just published its new version 4.0.0, 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 lodash – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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[codecov-io]

Current coverage is 100.00%

Merging #51 into master will not affect coverage as of 6af58a7

@@            master     #51   diff @@
======================================
  Files            6       6       
  Stmts          235     235       
  Branches        38      38       
  Methods          0       0       
======================================
  Hit            235     235       
  Partial          0       0       
  Missed           0       0       

Review entire Coverage Diff as of 6af58a7

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