Typed Drag'n'drop. Some nodes from firstTree have disabled actions.
firstTree. Between Dnd mode. Accepts firstTree only.
MyTree
Item 1
Item 1.1 blas
Item 1.2
Item 1.2.1
Item 1.2.2
Can't add child to this node
Empty folder
Item 1.3.2
Item 1.4
Item 1.4.1
Can't move this node
Item 1.6
Item 1.6.1
Item 1.6.2
DEBUG: EXPERIMENTAL: Tree drag'n'drop' has lots of problems/bugs, it requires dojo drag'n'drop overhaul to work, probably in 0.5 -- Not yet ready for use. APIs subject to change without notice.