update:option 'bar_height' change default value from undefined to '66%'
update:format multi column's id  'i_j'
add .gitignore
add TODO list
update:option 'column_width' change default value from undefined to '66%'
update:change variable ICHARTJS_CHART to _chart for short
fixed:put center into .oneways for dynamic change
add:add func tf
simplify Cans
add option empty for display when data is empty
optimize function destroy
optimize function resize
fixed:optimize function size fixed retina display bulr
add option background_wrap for apply a bg to div
optimize function coordinate_
optimize function uid
fixed:Event.fix add getBoundingClientRect
add:function remove()
remove member variable 'initialization'
optimize function isEventValid
change getPercent() to percent()
move _.components.push(_.proxy); into oneway() to avoid add duplicate
remove unused param
short variable
add option nullToDirect
add test html
delete