Start an IdentifierProvider for DataCite EZID
Add initial code
Document the IdentifierProvider interface
Flesh out the DOI code
Externalize defaults
Externalize defaults some more
start making the tests work
Use ServiceManager to get configured test instances
Factor out basic EZID operations
More EZID factoring
Split off EZID operations from DSpace provider
Begin debugging recent changes.
Fixes from testing
Cleanup and document a bit
License headers
More javadoc cleanup
Preserve causation chain in InstallItem