print extra info if any needed process kill on h2o is done and we get an exception (that we always ignored) ..also increase the timeout where we wait for the pkill to complete, and print a message if we hit the timeout (we always did, and still do, nothing if that happens. Maybe in loaded systems, the pkill (if necessary) takes a while to complete. (thinking of our low rate port busy issues). the wait timeout used to be 0.5 secs. now 2 secs. (per kill). ..the kill is only done if the process is still alive after sending an h2o shutdown, and only for local jvms (not remote host h2os..the channel shutdown is sufficient there)