D-Net

Refactoring for vocabulary persistence:
default DAO persists vocabularies on RegistryService.
An alias has been defined.
If we want to override the default bean the following property is to be used:
dnet.modular.ui.vocabulary.dao

First step of refactoring:
multiple persistence backends.
To-be-introduced: postgresVocabularyDAO

First step of refactoring:
multiple persistence backends.
To-be-introduced: postgresVocabularyDAO

fixed resource annotation

updating to major release of ServiceLocator

lombok has been removed

removed "hamster references"

move vocabularies ui to Tools group

fixed a visualization bug