In this version of NetSolve, the Life Link has two purposes:
(i)  Enable the proxy to auto-destruct by detecting that the client
     process is dead (we don't want a bunch of proxies lying around)
(ii) Enable a very basic HBM-like mechanism for detecting failure
     at the server level. In fact, this is very basic, but I believe that   
     it's also more reliable, portable, easier-to-use than the HBM :)
     It's also only a few lines of C. It just doesn't have the bells and 
     whistles.
