PDI-7734 - junits for EE Repository export with Rules: When it fails, no UI feedback is given and the file is incomplete

Added junit tests for RepositoryExport with feedback
PDI-7734 - EE Repository export with Rules: When it fails, no UI feed
back is given and the file is incomplete

Ui detailed report added.
Added copyrigth info for all new classes.
Merge pull request #270 from prakapenka/PDI-7734

PDI-7734 - EE Repository export with Rules: When it fails, no UI feedback is given and the file is incomplete