BAP-6957: Failed test CalendarRepositoryTest testFindDefaultCalendars after upgrade
   - fix invalid namespace in unit test fixtures
   - added priority for "load business unit and organization" fixture
   - added priority for "update calendar with organization" fixture in order to prevent calendar duplicate during update
   - fixed issue in loaded when notices are raised
Merge branch 'master' into ticket/BAP-6957
BAP-6957: Failed test CalendarRepositoryTest testFindDefaultCalendars after upgrade
    - fix code review issues
Merge pull request #3399 from laboro/ticket/BAP-6957

BAP-6957: Failed test CalendarRepositoryTest testFindDefaultCalendars after upgrade
Merge remote-tracking branch 'remotes/dev/master'