Attention (AT) Event.
This event is sent if the factory reset button is pressed on a webbrick after it has started up. This
event is sent once a second for a period of time and is intended for uses such as letting a user
identify a webbrick manually and then the software interface being able to identify hardware wise.
Type=http://id.webbrick.co.uk/events/webbrick/AT
Source=webbrick/fromNode/AT
ipAdr=dotted ip address
udpType=G
pktType=AT
fromNode=webbrick node number
macAdr=ethernet MAC address
