BibUpload: smart record uploader fixes
- Improves identical_records() flexibility.
- Introduce several bugfixes to the new bibupload revision verifier for some corner cases.
- Extends bibupload regression tests by always check for consistency among bibfmt, bibxxx and hstRECORD tables after any bibupload.
Signed-off-by: Samuele Kaplun <samuele.kaplun@cern.ch>
Tested-by: Tibor Simko <tibor.simko@cern.ch>