Connection: added
UnmodifiableList: renamed from UnmodifiableVerticeList
Graph: added getConnections(Vertice)
SimpleGraph: added SimpleConnection, fixed SimpleVertice.connections,
added getNewConnection
UnmodifiableList: made more flexible
UnmodifiableList: made public
DepthFirstSearch: fixed for Connection
ContractionGraph: fixed
RandomContraction: fixed
Graph: made connect to return Connection
SimpleGraph: fixed connect to return Connection
ContractionGraph: fixed connect to return Connection
deleted: DijkstraGraphFiller
DijkstraGraphReader: made to extend new GraphReader
deleted: ReversedGraphFiller
KosarajuAlgo: fixed issues
ReversibleGraph: fixed issues
TestKosaraju: removed SizeCounter, GraphFiller
ReversedGraphReader: added