stats updates. Basically stats_connection() was copied to
stats_callback() (i should probably factor out some of the code here!)
with the change that instead of sending stats to a socket, it sends the
event to a callback function.
svn path=/trunk/icecast/; revision=3026
1) vorbis tags (ARTIST and TITLE) now appear in the stats. Oddsock did
the first cut of this.
2) stats bug fixed. if a stats value was NULL a segfault occurred.
strdup(NULL) is fun!
svn path=/trunk/icecast/; revision=3024
the default stacksize is unchanged (8k) until further testing on Solaris
to determine if a larger value is needed.
svn path=/trunk/icecast/; revision=2221
