[Snyk] Security upgrade express from 3.19.1 to 4.16.0

[snyk-bot]

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

✨ Snyk has automatically assigned this pull request, set who gets assigned.

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	Issue	Breaking Change	Exploit Maturity
	Prototype Pollution SNYK-JS-MINIMIST-559764	Yes	Proof of Concept
	Arbitrary Code Injection SNYK-JS-MORGAN-72579	Yes	Proof of Concept
	Uninitialized Memory Exposure npm:base64-url:20180512	Yes	Mature
	Regular Expression Denial of Service (ReDoS) npm:debug:20170905	Yes	No Known Exploit
	Regular Expression Denial of Service (ReDoS) npm:fresh:20170908	Yes	No Known Exploit
	Regular Expression Denial of Service (ReDoS) npm:mime:20170907	Yes	No Known Exploit
	Regular Expression Denial of Service (ReDoS) npm:ms:20151024	No	No Known Exploit
	Regular Expression Denial of Service (ReDoS) npm:ms:20170412	Yes	No Known Exploit
	Regular Expression Denial of Service (ReDoS) npm:negotiator:20160616	Yes	No Known Exploit
	Prototype Override Protection Bypass npm:qs:20170213	Yes	No Known Exploit

Commit messages

Package name: express

The new version differs by 250 commits.

• f974d22 4.16.0
• 8d4ceb6 docs: add more information to installation
• c0136d8 Add express.json and express.urlencoded to parse bodies
• 86f5df0 deps: serve-static@1.13.0
• 4196458 deps: send@0.16.0
• ddeb713 tests: add maxAge option tests for res.sendFile
• 7154014 Add "escape json" setting for res.json and res.jsonp
• 628438d deps: update example dependencies
• a24fd0c Add options to res.download
• 95fb5cc perf: remove dead .charset set in res.jsonp
• 44591fe deps: vary@~1.1.2
• 2df1ad2 Improve error messages when non-function provided as middleware
• 12c3712 Use safe-buffer for improved Buffer API
• fa272ed docs: fix typo in jsdoc comment
• d9d09b8 perf: re-use options object when generating ETags
• 02a9d5f deps: proxy-addr@~2.0.2
• c2f4fb5 deps: finalhandler@1.1.0
• 673d51f deps: utils-merge@1.0.1
• 5cc761c deps: parseurl@~1.3.2
• ad7d96d deps: qs@6.5.1
• e62bb8b deps: etag@~1.8.1
• 70589c3 deps: content-type@~1.0.4
• 9a99c15 deps: accepts@~1.3.4
• 550043c deps: setprototypeof@1.1.0

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project.

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