set a default value for intrigueio api

Merge pull request intrigueio#126 from intrigueio/develop

Intrigue Core v0.7.1

link v0.70 release notes

0.5 release

remove vuln scan strategy until we can spend more time with it

https://intrigue.io/2017/07/17/defcon-25-release-intrigue-core-0-30/

Merge branch 'develop' of github.com:intrigueio/intrigue-core into de…

…velop