Original commit message from CVS:
for i in gstreamer-*; do mv $i `echo $i | sed -e 's/gstreamer/gst/'`; done

*THIS CHANGES PROGRAM NAMES*

gstreamer-register -> gst-register et al
no one expressed objections to this over a two-day period, so i went ahead and did it
this can be reverted if folks complain too much...