010912 When storing part of the buffer for a renewed attempt,
store the *end*, not the beginning. Affects copy_up and copy_down.
Autoconf. Use daemon() if available. Make sure that we don't try
to close uninitialized file handles in add_client.
New option -n to not make sockets nonblocking (mainly useful
for debugging).
010911 Make sure that remaining data is stored away when we get EAGAIN
in copy_up.
Released 0.3.3.
010909 Added -p argument to store process id in a file (Andreas Wrede).
Made the sockets nonblocking. Handle EAGAIN in copy_up/down.
Released 0.3.2.
010908 Ignore SIGPIPE. Released 0.3.1.
010827 Option -h uses a hash on the client IP address for the initial
server selection. Option -s ("stubborn") prevents failover to
another server if the initial choice is unavailable.
010824 Use getport for the local port as well.
