fix: package.json to reduce vulnerabilities
fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:cookie-signature:20160804
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:express:20140912
- https://snyk.io/vuln/npm:fresh:20170908
- https://snyk.io/vuln/npm:lodash:20180130
- https://snyk.io/vuln/npm:mime:20170907
- https://snyk.io/vuln/npm:minimatch:20160620
- https://snyk.io/vuln/npm:negotiator:20160616
- https://snyk.io/vuln/npm:qs:20140806
- https://snyk.io/vuln/npm:qs:20140806-1
- https://snyk.io/vuln/npm:qs:20170213
- https://snyk.io/vuln/npm:send:20140912
- https://snyk.io/vuln/npm:send:20151103

radanalyticsio/oshinko-webui,crobby/oshinko-webui,crobby/oshinko-webui,radanalyticsio/oshinko-webui,crobby/oshinko-webui,radanalyticsio/oshinko-webui