Merge pull request #178 from tjmcs/tb/find-match-by-hardware-id

Fixes #176 (Add ability to search for node/active_model via hardware_id)
Policy related comments on PR 172 addressed
`local_image_path` removed from api and cli
Merge pull request #172 from sankarvema/125-issue-fix

Fixes Issue 125 - Hanlon client config contains unnecessary parameters
Add db_name as config parameter