Andrew Stitcher

@cliffjansen I really like how this has turned out now. Are you finished or are there more changes due to adding new tests?

The new commits lgtm

There are 2 use cases for ```pn_buffer_t```: 1. As an intermediate buffer in the output logic chain. In this usage I'm pretty sure that we can stop automatically defragging the...

This looks like it fixes the segv, but it seems to change the async nature of the acknowledgement which might be important in some applications for performance. It is certainly...