Tagged release v3.9.0

ebdd1d5 Temporary add nadraEnglish-initial-qualification as common nadraEnglish
e5152fc Add validation for discount model
8b2fa59 Swap railway classifiers localization
f6c2e17 Remove nadraEnglish-initial-qualification procedure
3c64408 Update tests and timber test fixture
358d193 Cast related classifiers to array type
8c79c13 Add timberClass classifier
774ba8c Fix tests according to changes
36e9b36 Add participationUrl only for active bids
3cb56b7 Add CPVS.QB49-3 to the timberEnglish.additionalClassifier model
48c2dc0 Update test fixtures
d68c5ca Change previousAuctionId format
30230d4 Add tests for new dateModified logic
8bbe178 Check changed fields on documetns import data and do not set new dateModified if fields equals
eda02dc Change date config rendering