Updated node.py:1110 file to add node_ip_address as the ip_address seams to be disappearing and it is easier to hack maasserver package (can be refreshed by apache restart)

node.py

        # Try to pass the IP address correspond to the mac address
        if 'ip_address' not in power_params:
            ip_address_list = self.ip_address_of_mac_address(power_params['mac_address'])
            if len(ip_address_list) > 0:
                power_params['ip_address'] = ip_address_list[0]
                power_params['node_ip_address'] = ip_address_list[0]