====== EntityTree ======

Dinge als hierarchischen Baum darstellen, z.B. Taxonomy, Menu, Node, ...

  * Taxonomy List/Edit Form: https://www.drupal.org/project/hierarchy_manager
  * Formular Anzeige: https://www.drupal.org/project/entity_reference_tree
  * Views Tree für div. Entities: https://www.drupal.org/project/views_tree