Add an option "-f" (file) to /say_to

Let /del remove a MUC entry from the roster (Only users and agents were allowed.) Reported by didier69.

Add an option "-q" (quiet) to /say_to New prototype: /SAY_TO [-q] jid message Useful for non-interactive commands (FIFO, external sourced files...)

No need to explicitly reset auto-away for directed presence messages

Reset auto-away before changing the status Without this check some strange things can happen when the status is modified by a FIFO or a remote command, because the previous status & message will be restored.

Add option 'fifo_hide_commands'

Implement FIFO named command pipe

Add a mainloop hook

Allow "/buffer list" when debugging mode is disabled

Replace DEBUG_ENABLE with ENABLE_DEBUG