Chrome warns about deprecated Touch.webkit... properties

[jzaefferer]

'Touch.webkitRadiusX' is deprecated and will be removed in M47, around November 2015. Please use 'Touch.radiusX' instead.
'Touch.webkitRadiusY' is deprecated and will be removed in M47, around November 2015. Please use 'Touch.radiusY' instead.
'Touch.webkitForce' is deprecated and will be removed in M47, around November 2015. Please use 'Touch.force' instead.

We already have fallbacks to the non-prefixed properties: https://github.com/jquery/PEP/blob/master/src/touch.js#L164-L166

Maybe we should switch these checks to test the non-prefixed properties first?

[scottgonzalez]

We should definitely be checking non-prefixes properties first.