ServerListSubscribe

Description:	Called by RPCManager to subscribe to server list changes.
Returns:
Usage:
Function Groups:
Format:	ServerListSubscribe(SubscriberObj, Callback)
Parameters:

SubscriberObj

Object that is subscribing to server list changes

Callback

Text name of method in Subscriber to call (with no parameters) when the server list may have changed

Comments:

If the server list cannot be changed dynamically, then this need not be implemented.