EDIT

quick fix of tests, save() is not secured at the moment, because for tests it is needed to save objects to the database without authentication.

more changes to MarkUp import

factory method for IoProblemEvent and some more base methods for ImportHandler

added xmlImportConfigurator and some import handlers for markup import

create XMLImportBase

remove imports

event handling for IO (update) and MarkupImport

event based validation framework for IO

minor

bugfixes for dwca distribution and core export