Some pseudo-random changes

- Reinstated manual crawl for DB
- Tried (failed) to integrate EMMA: empty report
- Moved tests into Zeario
Removed SystemTests; we rolled it into Zeario.
Swapped EMMA for Jacoco. Generating 0% report.
Part of #32: re-organize tests

- Verified that test coverage is generating
- Fixed bug with test results keep appending to file
Failed remnants of unit-testing the search repository