EDIT

ref #8785: adapt label provider to dto

ref #8785: update descriptions in description list after merge

ref #8785: move add and delete specimen to menu and operations not saved directly but when editor is saved

ref #8753: set selection to null after deleting descriptiveDataSet

ref #8785: add menu item for remove desc and remember this desc and remove while saving

ref #8806: bind session to matrix editor when opening and focus

fix #8662: adapt canExecute to show remove taxon only when top level node is selected

ref #8450: add label to specimen filter

fix #8552: use preference cache for loading character matrix settings

ref #8890: allow multiselect for open in dynamic menu