Code review comment for lp:~anso/nova/newlog2

Logspool takes exceptions and puts them in a spool directory named by request id so they can be reported on. Spoolsentry processes the spool directory and adds the exceptions to an instance of django-sentry (perhaps it should live in contrib?).

I've added a class that wraps a logger with write for eventlet.wsgi.server and set a default level of WARN in nova/log.py, which can be changed via --defualt_log_levels=eventlet.wsgi.server=DEBUG if anybody ever wants to see the output.