(2.13) kvm: Minor refactor of MonitorSocket
(2.13) kvm: Minor refactor of MonitorSocket

Create socket upon connect(), keep the status of connection
(self._connected = False) in close(), make existing connect()
method protected and let connect() act as a reconnect method.

Signed-off-by: Dimitris Aragiorgis <4514117c4a99256e19437c7e3407c4ecbf98aec0@grnet.gr>
Reviewed-by: Hrvoje Ribicic <be5828fca31f89218048bec4189e30a581aa65da@google.com>

apyrgio/snf-ganeti,apyrgio/snf-ganeti