Version 2.6 includes improved versions of the following functions:

• degree_w: Can calculate the generalised form of degree as proposed in Opsahl, T., Agneessens, F., Skvoretz, J. Node centrality in weighted networks: Generalizing degree and shortest paths. Available through my blog.
• closeness_w: Can calculate the generalised form of closeness as proposed in Opsahl et al.
• betweenness_w: Can calculate the generalised form of betweenness as proposed in Opsahl et al.

If you have any suggestions, let me know!