* Issue #28 /admin/database/import
* Issue #39 SQLalchemy instead of SQL: AllModelClasses.remove_all()
* Issue #40 SQLalchemy instead of SQL: EuropeDataImportTable.get_date_rep()
* Issue #41 SQLalchemy instead of SQL: EuropeDataImportTable.get_countries_of_continent()
* Issue #42 SQLalchemy instead of SQL: WhoGlobalDataImportTable.get_new_dates_as_array()
* Fixed #49 EuropeServiceUpdate.__update_data_short() (wontfix)