GraphViewer: Added the DomObserverFactory to the index.html
GraphViewer: Now edges are connected to the correct nodels inside the community
GraphViewer: Fixed all tests for CommunityNode and added placeholders for Dissolve and Collapse buttons
GraphViewer: Adapted abstractAdapter tests to new community-node design
GraphViewer: Adapted ArangoAdapter test to new community-node design
GraphViewer: Adapted NodeShaper test to new community-node design
GraphViewer: Adapted EdgeShaper test to new community-node design
GraphViewer: Adapted Event tests to new community-node design
GraphViewer: Fixed a bug in the JSONAdapter, which caused the UI Tests to Fail, as the _id was not generated properly anymore
GraphViewer: Adapted NodeReducer tests to new community-node design
GraphViewer: Adapted the tests for the forceLayouter to community-nodes design
GraphViewer: All tests pass again
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel