RFD 26: refactor reference counting
RFD 26: refactor reference counting

joyent/rfd,rmustacc/rfd,melloc/rfd,davepacheco/rfd,davepacheco/rfd,rmustacc/rfd,melloc/rfd,melloc/rfd,joyent/rfd,AnthonyMann/rfd,joyent/rfd,davepacheco/rfd,joyent/rfd,davepacheco/rfd,davepacheco/rfd,AnthonyMann/rfd