socket minder -- socked data needs timeout

[Fred T. Hamster]

socket_data:

1. add timeout for sends and receives on socket:
   1. the send buffer waiting to go out on a socket must have a timeout so that we don't just get stalled on a bad socket. that socket must be recreated or something if that happens. perhaps it should be treated as a disconnect!
   2. also the incoming recv buffer must have a timeout so that we don't just wait for a packet to be completed forever.
   3. we can use that as the basis for deciding the data is stale and should be whacked.