Description of configuration options for wsgi

Configuration option = Default value	Description
[DEFAULT]
backlog = 4096	(IntOpt) Number of backlog requests to configure the socket with
retry_until_window = 30	(IntOpt) Number of seconds to keep retrying to listen
tcp_keepidle = 600	(IntOpt) Sets the value of TCP_KEEPIDLE in seconds for each server socket. Not supported on OS X.