[touch-events] Touch Event Extensions note should add arguments to CreateTouch (#12)

TEE adds 4 new properties to 'Touch' but doesn't update the signature of Document.createTouch to permit JavaScript to specify those properties.

Here's the [signature of createTouch in blink](https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/core/dom/Document.idl&q=file:Document.idl%20createTouch&sq=package:chromium&type=cs&l=171), or what it will be once [these](http://crbug.com/464708) [bugs](http://crbug.com/460099) are fixed:

    Touch createTouch([Default=Undefined] optional Window window,
                                             [Default=Undefined] optional EventTarget target,
                                             [Default=Undefined] optional long identifier,
                                             [Default=Undefined] optional unrestricted double pageX,
                                             [Default=Undefined] optional unrestricted double pageY,
                                             [Default=Undefined] optional unrestricted double screenX,
                                             [Default=Undefined] optional unrestricted double screenY,
                                             [Default=Undefined] optional unrestricted float radiusX,
                                             [Default=Undefined] optional unrestricted float radiusY,
                                             [Default=Undefined] optional unrestricted float rotationAngle,
                                             [Default=Undefined] optional unrestricted float force);

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/touch-events/issues/12