Change in behavior of unauthorized scripted downloads (15/09)

As from Monday September 15 9:00 CEST, the Terrascope download service (https://docs.terrascope.be/Developers/WebServices/TerraCatalogue/ProductDownload.html) will return an HTTP 401 response code in case of unauthorized scripted downloads.
 
Before, unauthorized scripted downloads were redirected to the Terrascope login page. This change doesn't impact the downloads via a browser and downloads via the terracatalogueclient (https://docs.terrascope.be/Developers/WebServices/TerraCatalogue/PythonClient.html).