Completed integration of new res.* content negotiating response methods.  Removed res.error enhancement that was there previously.
Fixes syntax error in res.forbidden
Updated config boilerplates, defaults
Update express
Flash messages now built in for both HTTP requests, and (in the off chance that they might be necessarygls) for socket requests.
Fixes 404 for sockets
Modfiied blueprints to use new negotiation fns.
Simplified 400 behavior
Added stub and notice about using the referer header to infer the origin of a bad request.