EDIT

#5563 fixed by avoiding access to null FeatureNodes

Fix CCE in DefinedTermDaoImpl.getPartOf (#5556) and make deproxy more
generic

Merge branch 'hotfix/3.12.3' into develop

Conflicts:
cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/TaxonNodeServiceImpl.java
cdmlib-services/src/test/java/eu/etaxonomy/cdm/api/service/TaxonServiceSearchTest.java

fix #5538

check for empty excludeUuid list

Change logging error to info

#4962 using LEFT FETCH JOIN for ranks and sec fixed problems and improves performance

Update to lucene 5.4 and some minor dependency updates

fixing problems regarding lucene search after merge - one test still failing

resolving conflicts after merge of ticket_4716 into develop