EDIT

merge cate-development2 branch with trunk

Added constraints to Taxon.synonymRelations, Synonym.synonymRelations, and SynonymRelationship.relatedFrom & SynonymRelationship.relatedTo to mark orphaned synonyms as invalid. [[https://dev.e-taxonomy.eu/trac/ticket/1347]]

Also, added constraint such that two accepted names or an accepted name and a synonym with the same sec reference and the same name are invalid.

fixes #1343

Added Methods to AuditEventService, VersionableServiceBase and altered NoDuplicateNamesValidator to take into account authorship, publication and microreference to allow for names that are homonyms

revert the model changes...

rightsterm -> rightstype ticket #1306

fixing a problem with pooled connection that only arose when exceeding maxActive connections

refactoring the references for imports...