Review of changes to the HTTP spec

HTTPbis seems to be in its final stages. Although it is supposed to be a somewhat minor revision, quite significant changes have been made to the spec. We should review the changes and make sure we provide our feedback before it is too late. In particular, if there is some change that we think we will not implement because we think the change is bad for whatever reason, we should push back on the change. That is probably the only useful feedback we could have this late in the game. 

Similarly, other HTTP working group work is at or nearing last call status, and we should review it.

Examples:
http://greenbytes.de/tech/webdav/#wg-httpbis
http://greenbytes.de/tech/webdav/#draft-reschke-http-status-308
http://greenbytes.de/tech/webdav/#draft-nottingham-http-new-status

This seems like it would be a significant amount of work. And, it probably can't be delayed too much. It might not be a good idea to delay the start of this review until after the Necko team workweek.

- Brian