Continued: move tests to main source tree for "integrated unit testing"
Add new test classes to testService
Add debug statement
Improve test: use already existing ProductionService bean, clean up after test.
Add deleteFully() to ProductionJob.
Replace "static mapping" with standard fields as productionResources do not need to be mapped automatically to players and it's easier not having to manually adding / removing objects via pc.removeFromProductionJobs etc.