GraphViewer Added tests for the graphViewer object ot be passed arround through adapter instances, which is required for reset
GraphViewer: Implemented passing around the graphviewer object through adapters, required for reseting
GraphVieweri: the abstract Adapter now propagetes a cleanUp call to the general viewer.
Fixed a test in the dispatcher that failed unpredictibly
GraphViewer: Whenever the content of the adapter is reseted now the content of the colourmap is reseted as well