Object design revisions

[Allison Randal]

I just finished reviewing docs/dev/pmc_object_design_meeting_notes.pod, 
 which is a summary of a design discussion I asked particle to lead at 
the hackathon last weekend. It's a fantastic piece of work, and nicely 
organizes the ideas we've been kicking around the past few months. 
Thanks to particle and everyone else who contributed.

I've added responses after each recommendation, if you have any 
questions or comments pull them onto the mailing list.

Thanks all,
Allison