EDIT

fix #7930 removed getDoi from IPublicationBase and IArticle and use IWithDoi instead (but not for journals, print series and personel communications)

some renamings and javadoc

ref #7922: add markertype for distribution editor descriptions

ref #7918 harmonizing ReferencePropertyDefinitions with updated reference interface hierarchy and hiding date pulished when not needed

minor

add convenience methods for reference type

ref #7914 add javadoc to IWithIsbn interface

improve journal parser

cleanup and javadoc

fix #7915 move datePublished to subinterface IWithAuthorAndDate, remove from IJournal and IPrintSeries this way