Fixes Issue #106 - RESTApi hanlon/api/v1/config does not return client config

Hanlon API and Cli modified to return both client and server configuration to suite the changed Hanlon design.

api/v1/config change to api/v1/config/server and api/v1/config/client to return server and client configs respectively
cli/hanlon config changed to cli/hanlon config {server | client}
This is where the current `image` slice API is being modified to return the fields I'm not sure we shoudl be returning in response to a RESTful API or CLI call; as I said in my comments in response to PR #172, I think the local_image_path should not be returned to a client (it should only be used on the server-side) and the status_message should be constructed by the client based on the status returned here, rather than returning both of these fields from the server to the client. Those are my thoughts on this particular proposed change; comments/feedback are welcome.