started UndirectedNode
forgot DirectedNode.h
drafted UndirectedNode
LinkManager started
changed Link to Buffer
specialization trick figured out
UndirectedNode drafted
MessageNode needs update for LinkManager
complete draft of graphs
adjusting test_graph
test_graph compiles
MessageNode tests compile and pass
adapting tests
old tests compile and pass
commented Buffer, Path and Port
still need comments in UndirectedNode and Graph
all graph files commented, need UndirectedNode tests
need UndirectedNode, PathValue tests
writing UndirectedNode tests
separating clone and mirror