D-Net

creating IIS-CDH-5.3.0 branch

replacing non standard dash character to '-'

replacing non standard dash character to '-'

fixing test run on jenkins: seting encoding explicitly to utf8

#1017 introducing new PMC metadata ingestion currently extracing references, journal and pages fields.
Replacing DOM/XPath based citations ingestion with much faster SAX version. Changing pmidtooaid transformer utilizing ExtractedDocumentMetadata instead of parsing XML file. Enabling PMC metadata ingestion in common/import.

#757 introducing article type extraction along with unit test. Article type will be required for filtering out pmc duplicates and leaving only proper types

#757 fixing pmid and doi matching, fixing sourceDocumentId and destinationDocumentId generation

Commented out test in a stub of a solution to the task #576: Ingestion of metadata from EuropePMC.

Stub of a solution to the task #576: Ingestion of metadata from EuropePMC.