net_topology_tracker
--------------------

A daemon using the toplogy service to keep track of the status of the 
overall cluster connectivity. It connects to the topolgy servers of all
detected peer nodes, ans subscribes for their network view.

Although not directly useful in its current simple shape, this can be
used to build a "matrix" of the connectivity between all nodes, e.g.,
for raising an alarm if the cluster loses full-mesh connectivity.
