Remove all DB interaction from hanlon client
 1. Initialize DB inits only for server, skip for client
 2. Remove db_check option from cli/hanlon config db_check (it is not relevant)
remove db logic from cli/hanlon policy
Move policy management logic from client to server
- cli/hanlon is connecting to db to perform policy table clean up and policy table ordering. This logic is moved to policy rest api end point and two parameters (serial_number and bind_counter)
remove persist_xxxx parameter from cli/hanlon node [uuid]
Remove unwanted config parameters from client config file
- Remove image_path, persist_xxxx, register_timeout
Reported issues on PR 172 fixed
- Node state information changed from verbose to flags
- Node data eloraboration issue fixed. Node returns url (as per original behavior)