* Fixed #18 /europe/update: Download
* Fixed #19 /europe/update: Import File to DB
* Issue #20 /europe/update: Update DB
* Issue #21 update_date_reported
* Issue #22 update_continent
* Issue #23 update_country
* Issue #24 update_data
* Issue #3 ORM: 3NF for ecdc_europa_data_import
* Issue #4 data update for 3NF ecdc_europa_data_import