The touch events won't be fired correctly if e.preventDefault() is not called in callbacks of touchmove & touchend
http://code.google.com/p/android/issues/detail?id=19827
draggable
drag & drop
to use g.opt to update or get parameters
Update the default max tap interval of a double tap
500ms -> 250ms
bug fix
update test case
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Some Android cannot set pageX/pageY for UIEvent or CustomEvent, using pX/pY instead.
while drag a img element, should call e.preventDefault()
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update zoomin zoomout logic
support NodeList/HTMLCollection
add rotation for gesture events
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* rotation
bind/register/delegate 2+ events at the same time
do not check support of CustomEvent
add g.util.getPageX & g.util.getPageY
* to use strict mode
refactoring
remove almost method in g, such as tap, bind, delegate
use on/off instead of bind, delegate etc.