EDIT

updated version in pom file to 7.4.4 and replaced usage of org.json with elemental.json
Two issues seen (needs more investigation) :

• org.eclipse.jetty.io.EofException seen when accessing UI using jetty 9.0.0 M3 included in run-jetty-run (nightly)
• d3 tree in concept relationship editor is really : could be due to change to elemental

D3ConceptRelationshipTree, ConceptRelationshipComposite, ConceptRelationshipPresenter, ConceptRelationshipView, IConceptRelationshipComponentListener : added directional variable to display cr tree in both direction
d3.conceptrelationshiptree_connector.js : updated to handle bi-directional display...

ConceptRelationshipComposite: added enabling / disabling of edit / delete buttons and firing event when edit concept relationship dialog is opened
EditConceptRelationshipComposite : fixed problems with async calls , adapted to updated operation class, added show in dialog method...

EditConceptRelationshipComposite : updated ui, added save + cancel + drag&drop functionality
ConceptRelationshipComposite : using the EditConceptRelationshipComposite
StatusComposite : set drag&drop mode
ConceptRelationshipPresenter, EditConceptRelationshipPresenter : moved create, update, edit methods to EditConceptRelationshipPresenter...

ConceptRelationshipComposite, ConceptRelationshipPresenter, IConceptRelationshipComponentListener : composite / presenter for the new concept relationship view
D3ConceptRelationshipTree, D3ConceptRelationshipTreeState : js component + state for the concept relationship composite...