add a version of config children that supports BOTH unique names and regular names

[rcoreilly]

simplest soln would be to have a delimiter (e.g., ':' ) and put UniqueName:Name into name field of TypeNameList, and then use that.

In giv.TreeView, under GoPi, we're swapping two nodes that have the same regular names -- so treeview doesn't update. in general, tree view should be fully robust with unique names, but it should display regular names...