Having fun with RepositoryEvents
SpringAtom - fixes #114

SReportEventListener with currently only one handler implemented:
- triggers on removing the SReport entity and removes associated entries in the file sysem

ReportBuilderService:
- removed method which actually deletes report instance

ReportBuilderController:
- due to change in ReportBuilderService call to delete delegated to SReportService (domain service)
caching.xml updated
method name changed