signed_networks: link_prediction: link.py: count_hops written
signed_networks: link_prediction: link.py: fixed bug in util.Counts
signed_networks: link_prediction: link.py: util.Counts doesn't deal with infinite_hops value
signed_networks: link_prediction: link.py: hops_count_before_edge_vs_count infinity is last value + 5 so that graph doesn't look bad