Gaël Berthaud-Müller authored Sep 27, 2021 and Alexandre committed Dec 21, 2021

TODO: attention get_test_history devrait casser

Merge develop into master (Backend)

Preparation for v2021.2.1 release (Backend)

Update Upgrade.md for the release

Adds Spanish language (es_ES) to various places

Updated instruction for FreeBSD due to updated indirect dependencies

First translation to spanish language

improve code quality

Fix inconsistency in SQLite test's age

Reapply change made in a8a4cee3 and removed by inadvertance in 5df15c0e.

Fix internationalized testing failure with error: "malformed UTF-8
character in JSON string"

Add danish translation

First draft of Norwegian translation

The different database drivers do not retrieve the data with the same
Perl's internal representation. Therefore it is required to check this
representation before calling "decode_json" that "expects an UTF-8
(binary) string" (https://metacpan.org/pod/JSON::PP#decode_json).

This was added in a8a4cee3 and removed in 5df15c (both in PR #841).

a8a4cee3: Fix computation of test's age (SQLite)

Check against "creation_time" to compute the test"s age instead of
"test_start_time" as this is done with MySQL and PostgreSQL.

Merge develop into master (Backend)