v0.2.0

Minor Enhancements

• Add to_string function for vertex (#36)
• Expose number of edges and vertexes in topology (#36)
• Add inverse_edge to find a corresponding edge with src and dst reversed (#41, #43)
• Better DOT file parsing (#48)

Enhancements

• Export an Topology instantiation with simple implementations for NODE and LINK (#36).
• Add find_edge function to get a single edge between two vertexes (#36)
• Add find_all_edges to get all edges between two vertexes (#47)
• Add all shortest path (Bellman-Ford) implementation (#36)
• Add all pairs shortest path (Floyd-Warshall) implementation (#36, #37)

Incompatible Changes

• Add support from creating mininet scripts from a topology, requiring NODE and LINK modules to support this as well. (#45)
• Make Path module a functor over a WEIGHT module (#46).