test_refer.c: added test for BYE sent before response to NOTIFY has been received.
test_refer.c: added test for BYE sent before response to NOTIFY has been received.

darcs-hash:20061212014302-65a35-de80514ff93a6aed721f9a17f48aa322423d6eaf.gz

xhook/sofia-sip,jart/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,jart/sofia-sip,BelledonneCommunications/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,unispeech/sofia-sip,jart/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip