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:hawk:20160119
- https://snyk.io/vuln/npm:hoek:20180212
- https://snyk.io/vuln/npm:http-signature:20150122
- https://snyk.io/vuln/npm:qs:20170213
- https://snyk.io/vuln/npm:request:20160119
- https://snyk.io/vuln/npm:tunnel-agent:20170305

chrismilleruk/couch-stream,chrismilleruk/couch-stream