Add list of new features
Group node svg elements under group tags
Merge branch 'refactor/group-node-visual-elements'
Draw relations
Fix ids on node data
auto run tests
fix hidding dragline
add relations
Update karma conf
Add service to transform nodes
Add service to handle relation transformations
Integrate Node and Relations service to controller
Fix addNode/addRelation implementation
Fix call to directive addNode and addRelation
Remove onTopOfNode state
stop click event propagation when clicking a node
Comment all log calls not involved in dragging and clicking
Remove extra comments
Update readme
Merge pull request #4 from fespinoza/feature/add-relations

Feature: Add relations