Incomplete - task : Refactoring 
	- replaced checked exceptions in entitymanager with unchecked
	- introduced "exception" interceptor for catching exception's
- ObjectMapperProducer
Merge branch 'dev-api' into exception-response-refactoring

Conflicts:
	server/webapplication/src/main/java/poolingpeople/webapplication/business/boundary/TaskBoundary.java