[0.9.13-patch2] 2019.11.20
		support window scrolling when dragging

		改动PR:
		https://github.com/cd-fez/es-jquery-sortable/pull/1

[0.9.13-patch1] 2018.7.18
		 support touch device

		改动PR:
		https://github.com/johnny/jquery-sortable/pull/169/files

[0.9.13] fix hovering over empty container (Jonny Gerig Meyer)
         allow custom drag classes (Jonny Gerig Meyer)
         support text areas inside sortables (Isaac Kearse)
         fix drag with placeholder issue (Michael McLaughlin)
         user outer dimensions for dragged item (Jared Mellentine)
         support npm and bower (Patrick Gunderson, Shaun Dern)
         fix issue with legacy jQuery 1.10
         fix for mobile chrome

[0.9.12] expose mouse events in callbacks
         add refresh method
	       add destroy method
	       add delay option
	       falsy return value in onMousedown prevents dragging
	       fix exclusion of items
	       fix ignore for select element (abixalmon)
	       fix touch events (prateekjadhwani)
	       fix itemPath issues (appending and dragInit)
         improve documentation
[0.9.11] option tolerance accepts negative values
	       rewrote enable/disable logic
	       added (item|container)Path

[0.9.10] Fix Array.indexOf() error in IE < 9 (Dev-Speranza)
	       serialize() assumes one subcontainer per item
	       remove call to stopPropagation()
	       Added onMousedown()

[0.9.9]	Added options tolerance and distance
	      Do not modify Array.prototype (by Joakin)
	      serialize respects exclude option

[0.9.8]	Added Serialization
	      Added onCancel

[0.9.7]	Support iFrame and Touch events
	      Better behavior if the CSS position changes
