stable-6x-06-09-2021

This release adds the following change:

• Whenever an item is visited or a file is downloaded a request is sent out
• If the related service is unavailable, the timeout can be very long (leading to very slowly loading item pages).
• A timeout has been included to avoid these long loading times

stable-6x-26-03-2019

Removal urn:ip from req_id parameter
Update of the tracker URLs

stable-5x-26-03-2019

Removal urn:ip from req_id parameter
Update of the tracker URLs