Change property name "svc" to "svc0" for option conn0
Add second connection to watch ip changes
Add missing semicolon
Connect watcher to conn1
Force driver to close watcher connection

When virtual machine is closed unexpectly, connec1 is not closed automatically
so the socket is never released. We force to close it to avoid the existance of
opened file descriptors.
Fix typo in debug comment
Send command in conn1 to monitor ip changes