Probleme solved with uppercase/lowercase of namespce-tag:
  METS:dmdSec or mets:dmdSec
now we follow the namespace declaration.
Problem with namespaces solved.
Get a list of documents as JSON implemented.
null check added to getAsJSON
Use the first appearance of element title.
Refactorings.
Use the first appearance of element title.
Refactorings.
Constraint ingest: see comment for IngestController.ingestMetsDoc
The retrieval of identifiers and title is now separated, no loger as part of the dmdSec processing.
AlreadyInDB retrieves now the docid.
Refactoring.
The retrieval of identifiers and title is now separated, no loger as part of the dmdSec processing.
AlreadyInDB retrieves now the docid.
Refactoring.
Refactoring.
Different ingest types implemented: insert new, {reject|replace|new} if exists.
The ingest type "new" identifies, to create a new document if it is already in the db.
New makes problems, and it will be deleted with the next commit.
Ingest type "new" removed.
Mets, tei & teiEnriched ingest and access.
DocInfo creation.