default value for timestamp

Fixes #144.

Author: cwilso

index.html

@@ -742,7 +742,7 @@ <h3 id="MIDIOutput"><a>MIDIOutput</a> Interface</h3>
 
         <dl title="interface MIDIOutput : MIDIPort"
             class="idl">
-          <dt>void send( sequence&lt;octet&gt; data, optional double timestamp )</dt>
+          <dt>void send( sequence&lt;octet&gt; data, optional double timestamp = 0 )</dt>
           <dd>
             <p>
               Enqueues the message to be sent to the corresponding MIDI port.  The underlying implementation will (if necessary) coerce each member of the sequence to an unsigned 8-bit integer.  The use of sequence rather than a Uint8Array enables developers to use the convenience of <code>output.send( [ 0x90, 0x45, 0x7f ] );</code> rather than having to create a Uint8Array, e.g. <code>output.send( new Uint8Array( [ 0x90, 0x45, 0x7f ] ) );</code> - while still enabling use of Uint8Arrays for efficiency in large MIDI data scenarios (e.g. reading Standard MIDI Files and sending sysex messages).
@@ -775,7 +775,7 @@ <h3 id="MIDIOutput"><a>MIDIOutput</a> Interface</h3>
               </dd>
               <dt>optional double timestamp</dt>
               <dd>
-                The time at which to begin sending the data to the port (as a <a href="#DomHighResTimeStampDfn">DOMHighResTimeStamp</a> - a number of milliseconds measured relative to the navigation start of the document).  If <code>timestamp</code> is not present or is set to zero (or another time in the past), the data is to be sent as soon as possible.
+                The time at which to begin sending the data to the port (as a <a href="#DomHighResTimeStampDfn">DOMHighResTimeStamp</a> - a number of milliseconds measured relative to the navigation start of the document).  If <code>timestamp</code> is set to zero (or another time in the past), the data is to be sent as soon as possible.
               </dd>
             </dl>
           </dd>