[Snyk] Fix for 27 vulnerabilities

[SibuStephen]

Snyk has created this PR to fix 27 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Denial of Service (DoS) npm:ws:20171108	761
	Arbitrary Code Injection SNYK-JS-XMLHTTPREQUESTSSL-1082936	726
	Improper Input Validation SNYK-JS-SOCKETIOPARSER-3091012	704
	Denial of Service (DoS) SNYK-JS-ENGINEIO-1056749	696
	Prototype Pollution SNYK-JS-LODASH-6139239	696
	Denial of Service (DoS) SNYK-JS-SAILSHOOKSOCKETS-589929	696
	Regular Expression Denial of Service (ReDoS) SNYK-JS-SEMVER-3247795	696
	Denial of Service (DoS) SNYK-JS-SOCKETIOPARSER-1056752	696
	Prototype Pollution SNYK-JS-LODASH-450202	686
	Prototype Pollution SNYK-JS-LODASH-608086	686
	Prototype Pollution SNYK-JS-LODASH-73638	686
	Access Restriction Bypass SNYK-JS-XMLHTTPREQUESTSSL-1255647	686
	Code Injection SNYK-JS-LODASH-1040724	681
	Prototype Pollution npm:lodash:20180130	636
	SQL Injection npm:waterline-sequel:20160804	624
	Denial of Service (DoS) SNYK-JS-ENGINEIO-3136336	589
	Regular Expression Denial of Service (ReDoS) npm:negotiator:20160616	589
	Regular Expression Denial of Service (ReDoS) npm:parsejson:20170908	589
	Denial of Service (DoS) npm:ws:20160624	589
	Regular Expression Denial of Service (ReDoS) SNYK-JS-LODASH-1018905	586
	Insecure Defaults SNYK-JS-SOCKETIO-1024859	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-WS-1296835	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-LODASH-73639	541
	Regular Expression Denial of Service (ReDoS) npm:debug:20170905	506
	Uninitialized Memory Exposure npm:mysql:20170317	496
	Insecure Randomness npm:ws:20160920	479
	Regular Expression Denial of Service (ReDoS) npm:ms:20170412	399

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• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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🦉 Denial of Service (DoS)
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