Entity layer
Moved status to an enum
Added router service
Working on service layer: Import
Tests for the import service
Added blob by context query
Added blob by context query
Added a test object factory
Fixed the upstream merge issue
Working on zip session
Working on the zip service
Added the zip service
Factored out abstract message consumer
Added negative test cases for ZipService
CalculatorService
Added StatisticsSessionQuery test
Service integration tests
Merge tag '0.3-services'

Service layer