Modified --trace-sip in sip_message to also log to stdout

darcs-hash:20090214002117-1e3d8-b767d4385678688b0fcc7116e4f318fa5f968f0a
Modified --trace-sip in sip_publish_presence to also log to stdout

darcs-hash:20090214002204-1e3d8-387d43c7cc05c7d7b0b3cca113bf1c782d65672f