sync config.py and msrp scripts

darcs-hash:20090310074022-b2873-9b7e65d4420c99a8a1558a46ca17033dfdb0bc72
move scripts/sip_send_message.py to demo/msrpchat_send_message.py

darcs-hash:20090310075743-b2873-670a689a717444a21dca959d36e49457abb3993b