optionTemplate,itemTemplate,optionCreateTemplate,optgroupHeaderTemplate,optgroupTemplate, optionView,itemView,optionCreateView,optgroupHeaderView and optgroupView
basically using the above-mentioned properties would cause ember throw an error saying view.renderToBuffer() is no longer available. we should find a workaround for this. Maybe get the string representation of rendered view this way:
_getStringFromView:function(view){
view.createElement();
return view.element.outerHTML
},
i can get it done if you want