EDIT

ref #9809 include new authors in result.

ref #9889 add direct matching on persistence to deduplication helper and replace for reference.author and .inReference

cleanup

cleanup

ref #9888 add book section handling to RIS import

remove further featureTree and featureNodeService occurrences

cleanup and renaming some functional test classes (cont.)

adapt getIdentifier methods

fix #9786 implement CY and fix PY for RIS import (and fix Source handling for in-references)

Cleanup RIS and Endnote tests