Make clientX/Y optional in createTouch.
--- a/touchevents.html Thu Apr 28 10:54:17 2011 -0700
+++ b/touchevents.html Thu Apr 28 10:59:49 2011 -0700
@@ -361,8 +361,8 @@
<dt>long pageY</dt> <dd></dd>
<dt>long screenX</dt> <dd></dd>
<dt>long screenY</dt> <dd></dd>
- <dt>long clientX</dt> <dd></dd>
- <dt>long clientY</dt> <dd></dd>
+ <dt>optional long clientX</dt> <dd></dd>
+ <dt>optional long clientY</dt> <dd></dd>
<dt>optional long radiusX</dt> <dd></dd>
<dt>optional long radiusY</dt> <dd></dd>
<dt>optional float rotationAngle</dt> <dd></dd>