nta.c: nta_leg_tag(leg, NULL) now always returns the tag (old or new)
nta.c: nta_leg_tag(leg, NULL) now always returns the tag (old or new)

Ignore-this: f5a7d67ed90e2c284f6696d6b5b89326

darcs-hash:20090305190822-db55f-f752aaf0deaeb29faf5697aa39ba394571b15795.gz

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