[boost] [PQS mainly] Please update the subject line when changing the subject!

I don't have a vast amount of time in my life at the moment, and I'd have liked to have followed some of the discussion about PQS. This has been significantly hampered[*] by much of the discussion being carried out as followups to reviews, or review deadline announcements without updating the subject line. *Please* remember to update the subject line! (As a second point, it would be nice if replies to a long review covering multiple points would address each point in a separate reply rather than having ever expanding replies of hundreds of lines at a time... Each one, of course, having a suitable subject line.) phil [*] When I say "hampered", I mean: I've given up. -- change name before "@" to "phil" for email