Added 'append sibling' sample
Added 'append sibling' sample

Koloto/fancytree,jiangjunt/fancytree,dewhisna/fancytree,hglty07/fancytree,spilmert/fancytree,dewhisna/fancytree,Aliccer/fancytree,Aliccer/fancytree,hglty07/fancytree,hglty07/fancytree,HobieCat/fancytree,HobieCat/fancytree,instein2014/JQuery,spilmert/fancytree,grandmanitou/fancytree,grandmanitou/fancytree,instein2014/JQuery,spilmert/fancytree,jiangjunt/fancytree,Mats0/fancytree,jiangjunt/fancytree,Mats0/fancytree,HobieCat/fancytree,Koloto/fancytree,dewhisna/fancytree,Koloto/fancytree,Aliccer/fancytree,grandmanitou/fancytree