Fix check of incremental harvesting when len(test_records) == 1
Restructured application
Updated .gitignore
PEP8
Added README
Removed unused imports; added requirements.txt
as Friedrich suggested, I added myself as current maintainer
typo discovered by Friedrich
make wording analogous to dc:language message
fix datetime delta computation for resumptionToken expiration date warning
(thanks to John Salter <J.Salter at leeds.ac.uk> for reporting this bug!)
remove URL that is irrelevant for the public