!These issues are pretty basic, and should be easy to resolve- but this
should happen immediately!

As discussed, the datamanager should be up as soon as possible; I can
begin work but need functionality to test my code.

As we dicussed Friday afternoon, I need a unique ID or HUComponent pointer
for each object in the graph.  So, I think processEvent should return an
int or HUComponent* value.  I know that this is a little inelegant, as the
HUCreateObjectEvent is the only one which will require a return value.
If another idea comes up which lets me get the data, that's fine.

Actually, I'm still confused: do I 1) "new" a Component directly and set    
all of the fields, then pass in "CreateObjectEvents" to store the undo
data, or 2) is the DataManager completely encapsulating the graph, so any
creation of Components or setting of fields goes through the DataManager?

About the events: 
shouldn't HUModifyConnectionEvent take 3 values: from and to ID codes or
pointers, and the type of connection?