SP-168 BIS-90 : unit tests and bugfixes

...ch/systemsx/cisd/openbis/generic/server/CommonServer.java

...nbis/generic/server/dataaccess/db/SequenceNameMapper.java

.../openbis/generic/shared/translator/DataSetTranslator.java

...ed/translator/ExternalDataManagementSystemTranslator.java

...x/cisd/openbis/generic/server/ETLServiceDatabaseTest.java

...c/server/business/bo/datasetlister/DatasetListerTest.java

...isd/openbis/generic/server/dataaccess/db/DataDAOTest.java

...nbis/generic/shared/translator/DataSetTranslatorTest.java

...ranslator/ExternalDataManagementSystemTranslatorTest.java

...eapitest/api/v1/GeneralInformationServiceJsonApiTest.java

openbis/sourceTest/sql/postgresql/113/008=data_all.tsv

openbis/sourceTest/sql/postgresql/113/014=data_set_types.tsv

openbis/sourceTest/sql/postgresql/113/035=link_data.tsv