Fixes: U4-3506 Linkpicker in RTE doesn't expand tree to last selected link - missing GetPath parameter - which lead to lots of other cleanup, removes auth listening on the section and tree directives since that doesn't belong there, now the navigation controller determines what to render depending on authorization. Removes the path parameter on the umbTree and umbTreeItem since this didn't work and syncTree should be used instead. Fixed up some more tree sync logic as well.