fix stack smashing related to unity extension. don't unexport  musicPlayer if it was never initialized. http://forum.getnightingale.com/thread-742.html
initial work on preprocessing out metrics from extensions, #213
add endif that I missed. shoutcast, lastfm, and mashtape should work now
preprocess concerts and newreleases extensions, reorganize jar manifest lines
Merge remote-tracking branch 'origin/sb-trunk-oldxul' into gstreamer-1.0