[Snyk] Security upgrade querystringify from 1.0.0 to 2.0.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	584/1000 Why? Has a fix available, CVSS 7.4	Prototype Override npm:querystringify:20180419	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: querystringify

The new version differs by 7 commits.

• 020c30f [dist] 2.0.0
• 422eb4f [security] Prevent overriding of build-in properties by default (#19)
• 0b65759 chore(package): update mocha to version 3.5.0 (#12)
• 5e79e6e chore(package): update mocha to version 3.4.0 (#11)
• 4cad3ab chore(package): update mocha to version 3.3.0 (#10)
• 1e41231 Merge pull request #9 from unshiftio/greenkeeper/assume-1.5.0
• 7cdb42e chore(package): update assume to version 1.5.0

See the full diff

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