first stab at #77 - add basic graphing engine and added a couple of graphs in the dashboard

fixes #70 - shows hosts in error state in the dashboard

added delete link from report show action

Destroyed objects did not show up correctly

• created an audit show page
• added auditing for external node parameters
  refs #43

fixes #28 and converts existing helpers to snippets

added missing index page and added db indexs - ref #30

Fixes #30 - a very basic version for now - feature requests ARE WELCOMED

switched to rest helpers

Adding Links to Audit Log
Currently Facts Auditing is disable