Notes form the BoF @ RosCon 2013

https://github.com/stonier/rosjava_core/blob/bof/docs/birds_of_a_feather-roscon-2013.rst

This doesn't necessarily have to be pulled in, though it might be nice to have it in docs for the record.

Use this pull request rather to generate discussion and I'll (Daniel) will update the document as we go.