Implement SSH port check utility
Allow Public Cloud deployments using CentOS
Make port check less restrictive and more re-usable.
Remove local copy of Chef installation script.
Add required  module import.
Removed unused imports.
Merge pull request #177 from jpmontez/pubcloud-centos-rdo

Allow CentOS Public Cloud deployments
Merge branch 'master' of https://github.com/rcbops-qa/monster