* Fixed #18 /europe/update: Download
* Fixed #19 /europe/update: Import File to DB
* Fixed #20 /europe/update: Update DB
* Fixed #21 update_date_reported
* Fixed #22 update_continent
* Fixed #23 update_country
* Fixed #24 update_data
* Fixed #25 /who/update/initial update_data_initial
* Fixed #27 /admin/database/drop
* Fixed #3 ORM: 3NF for ecdc_europa_data_import
* Fixed #4 data update for 3NF ecdc_europa_data_import