Update for Dependency graphs

modeling/AVATAR/testDependencyGraphs.xml

src/main/java/avatartranslator/AvatarDependencyGraph.java

src/main/java/avatartranslator/AvatarSpecification.java

src/main/java/ui/GTURTLEModeling.java

src/main/java/ui/TDiagramPanel.java

src/main/java/ui/graphd/GraphDEdgeConnector.java

src/main/java/ui/window/JDialogAvatarModelChecker.java