play_nds_hoft.sh now works

examples/play_nds_hoft.sh

 # A gst-launch pipeline to encode h(t) from NDS2 into a OGG/Vorbis file
+# The 'adder' element is included as a hack to throw away GPS time stamps; otherwise
+# the autoaudiosink won't play
 
 HOST="marble.ligo-wa.caltech.edu"
 REQUESTED_CHANNEL_NAME="H1:DMT-STRAIN"
@@ -16,6 +18,7 @@ gst-launch \
 		amplification=2e+17 \
 	! progressreport \
 		update-freq=2 \
+    ! adder \
     ! audiorate \
 	! audioconvert \
 	! autoaudiosink