Move Specimen-Editor to bulk editor menu
Currently the Specimen-Editor opens via Windows-Show Views.
This is incorrect as the Specimen-Editor is not a view (anymore). Also it is confusing as one does not expect it there. A better place is Windows-Bulk editor (maybe we should remove "Bulk" from the menu entry to be more generell).
Maybe we should call it Specimen tree editor to better distinguish from Specimen bulk editor.
Note: Once you do this, could you also please move user and usergroups to the admin menu (I think there is a ticket for this somewhere already)