ext/mad/gstid3tag.c: Finish porting to 0.9: no more gstdata, check for link functions...

ext/mad/gstid3tag.c: Finish porting to 0.9: no more gstdata, check for link functions before calling them, give gst_m...

Original commit message from CVS:
2005-06-02  Andy Wingo  <wingo@pobox.com>

* ext/mad/gstid3tag.c: Finish porting to 0.9: no more gstdata,
check for link functions before calling them, give
gst_message_new_tag its own copy of the tag list, set the parser
state before sending the event (because in 0.9 events are
processed immediately), casting fixes.

* ext/mad/Makefile.am (libgstmad_la_LDFLAGS): Link with
gsttagedit.