Re: [sr-dev] git:master: core: daemon status/pipe fixes & interface changes

core: daemon status/pipe fixes & interface changes - moved most of the daemon status stuff to daemonize.[ch]. - nicer interface (e.g. daemon_status_send(code)) - send/read only 1 byte which will be used as exit code - send an error status on error (fixes  "Main process exited before writing to pipe" error message) - disabled the timeout.  Not needed (now a status is sent always  and even an unlikely process crash before sending it is detected via  the read() failure) and very hard to find a good value (some  setups start very slow). - close the pipe "send" fd in processes not needing it - attempt to send back status only if dont_daemonize is not set  (not only if dont_fork==0, it is possible to have forking  enabled, but daemonize disabled: ser -DD) - BSDed daemonize.[ch] and pt.[ch]