EDIT

Implemented new basionym / homotypic group methods in Editor per #552.

finalizing preferred refactoring

Implemented some of the import/export functionality. Major refactoring of datasource wizards and wizard pages. Again, refactoring of preferred terms handling. General code cleansing.

added berlin model export wizard. added a wizard to create taxonomic trees. refactored datasource wizards to be more generic and usable in different contexts. new plugin

Implemented an ILabelImageStrategy to deal w different nomenclatural codes per #776

Commit before deleting.

Added a bunch of functionality that will be needed when opening the editor with an empty datasource, such as creation of trees adding and removing taxa s.o.

fixes 777

finalizing preferred refactoring

Added a "not yet implemented" warning to FeatureMenuPreferences buttons