EDIT

Updating develop poms back to pre merge state

updating develop poms to master versions to avoid merge conflicts

updating poms for 5.19.0-SNAPSHOT development

ref #8547 add inreference type for Proceedings

ref #8547 make ReferenceType.inReferenceContraints() a list

ref #9322 handle also AUD table in SingleTermRemover and connect the schema updater

ref #9228 , ref #4866 some fixes for subtree cloning

cleanup

ref #4866, ref #9228 implement subtree clone (cont., fix taxon cloning)

ref #4866, ref #9228 implement subtree clone