[Snyk(Unlimited)] Upgrade lodash from 4.17.10 to 4.17.15

[snyk-bot]

Snyk has created this PR to upgrade lodash from 4.17.10 to 4.17.15.

• The recommended version is 5 versions ahead of your current version.
• The recommended version was released 3 months ago, on 2019-07-19.

Release notes

• Package name: lodash
  • 4.17.15 - 2019-07-19

    4.17.15

  • 4.17.14 - 2019-07-10

    4.17.14

  • 4.17.13 - 2019-07-09

      </li>
      <li>
        <b>4.17.12</b> - <a href="">2019-07-09</a>
        
      </li>
      <li>
        <b>4.17.11</b> - <a href="">2018-09-12</a>
        
      </li>
      <li>
        <b>4.17.10</b> - <a href="">2018-04-24</a>
        
      </li>
    </ul>
    

  from [`lodash` GitHub Release Notes](https://github.com/lodash/lodash/releases)

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