Description of configuration options for ssl

Configuration option = Default value	Description
key_file = None	(StrOpt) Key file
ssl_ca_file = None	(StrOpt) CA certificate file to use to verify connecting clients
ssl_cert_file = None	(StrOpt) Certificate file to use when starting the server securely
ssl_key_file = None	(StrOpt) Private key file to use when starting the server securely
use_ssl = False	(BoolOpt) Enable SSL on the API server