Intall signal handler for SIGPIPE.
Intall signal handler for SIGPIPE.

This prevents termination of cjet in case something is written to a
already closed socket.

gatzka/cjet,gatzka/cjet,mloy/cjet,mloy/cjet,gatzka/cjet,mloy/cjet,gatzka/cjet,mloy/cjet,gatzka/cjet,mloy/cjet