Unit tests for Messenger fixed
Merge pull request #509 from nazariitashak/development

BTM\VisasAndPermits test was fixed.
To issue #493
ACC integration test fixed
Merge pull request #510 from AnnaStorozhenko/development

To issue #493
Merge pull request #511 from Bohdan-Tereta/development

Unit tests for Messenger and integration tests for ACC are fixed
Holiday Migration added for issue #493
Added HolidayTitle migration, InititalCreate should be generated only after applying this one
Merge pull request #512 from Bohdan-Tereta/development

Added Holiday Migration, Reverted InitialCreate migration