Continuity client now exits with code 1 on transaction failure

0.2.0:

• Added default_pool in client configuration
• fixed deb & rpm packages to restart service on upgrade
• added support for authentication via ssh keys

transaction command is now async and doesn't timeout on long requests.
Fixes:

• keep server uuids on reload
• check client/version match on requests
• fixed autosave path

fixed docker image
fixed update pool command
better server addresses representation in config