Auth: cjf

Connections: from UMLGenerator to DataManager, Event, and Graph

The UMLGenerator will have to use its own internal data structures to calculate
the nature of a graph from a .C or .java file.  Upon computing its internal
represenation of the graph, it will translate this representation into a 
stream of events that will be sent to the Data Manager upon a blank Graph.
Through these events, a global data structure for the code files will be
created, which can then be displayed using the PassiveUI.