Update noteOn/noteOff references from old Web Audio API spec to start/stop to restore partial sound support

js/primitives/SoundPrims.js

@@ -39,7 +39,7 @@ SoundPrims.prototype.addPrimsTo = function(primTable) {
 var playSound = function(snd) {
     if (snd.source) {
         // If this particular sound is already playing, stop it.
-        snd.source.noteOff(0);
+        snd.source.stop();
         snd.source = null;
     }
 
@@ -62,7 +62,7 @@ var playSound = function(snd) {
     window.setTimeout(snd.source.finished, snd.buffer.duration * 1000);
     // Add the global list of playing sounds and start playing.
     runtime.audioPlaying.push(snd);
-    snd.source.noteOn(0);
+    snd.source.start();
     return snd.source;
 };