removed onTouchMove event listener, so it will be more effective.

[ghking1]

fastclick with onTouchMove event listener is not effective, and sometimes may not work well, when I want it work work with some scroll plugin. because every time when I move my finger, it must call a function in fastclick.
so, now I removed onTouchMove event listener, instead of check whether finger has moved in the onTouchEnd event. 
In the same time, I need touchStartX  and touchStartY remember clientX and clientY, but not pageX and pageY. because when I scroll the screen, pageX and pageY may not change, but clientX and clientY must changed.