#95 Resident node name checker's failure

[Shou Matsumoto]

By using the new GUI, it became possible to change a Node's name by double-clicking it.
But unfortunatelly, the name consistency checker (which denies invalid characters or duplicate name) is not working on such feature.
I suppose this is because the old GUI was only allowing changes on names by using a text field at the edition panel, and the consistency checker was probably implemented at that text field's action listener.