Remodeled DynamicFlowGraph and the GraphVisualizer. Now they are better set up for graph creation visualizing. Added a copy constructor to DFG. Also, Simulator is correctly producing a max flow through EK. It just looks very odd in the visualizer (because of the augmenting path.. For some reason, JUNG is keeping the augmenting path).

Signed-off-by: cauth0n <derekreimanis@yahoo.com>