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:mime:20170907
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:fresh:20170908
- https://snyk.io/vuln/npm:ms:20170412
- https://snyk.io/vuln/npm:qs:20170213

Latest report for labshare/services-cache:package.json:
https://snyk.io/test/github/labshare/services-cache?targetFile=package.json
LabShare/services-cache,LabShare/services-cache