Fixed handle leaks in nua_test.c.
Fixed handle leaks in nua_test.c.

Added delay before nua_shutdown() in order to ease debugging.

darcs-hash:20060427204406-65a35-f24a060badf2df9a78ba895629175a94ccb6d8e3.gz

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