Update logging to use Python's logging framework.

Hi all,

I am using daphne in production environment for a chat server with around 300 concurrent users. My problem is that the daphne access log grows pretty fast (around 100MB per day) and it brings trouble when retriving log file from the remote server for checking. Is there any way to support a feature like the TimedRotatingFileHandler in python logging?

The dahpne is running under circus and the config is as below:

[watcher:daphne 1]
cmd = daphne chat.asgi.prod:channel_layer --port 8081 -b 0.0.0.0 --access-log logs/daphne1.log
numprocesses = 1
copy_env = True
...