By default, configuration file is /etc/shrpx/shrpx.conf.  It can be
overridden using --conf option. See shrpx.conf.sample to know how to
write shrpx.conf. The configurations given in shrpx.conf will be
overridden by the options specified in cmmand-line.

--pid-file option saves PID to the specified file.  user option is
--used to drop root privileges.

This option append X-Forwarded-For header field to the downstream
request.

To enable SPDY proxy, use --spdy-proxy option.  At time of this
writing, the only browser which supports SSL/SPDY proxy is Chrome.

Removed Location and Host header field rewrite.

Set -n default value to 1. Show missing default values.  Use -c value
in SPDY session.

The default log level is now WARNING.

Put libhtparse in examples/htparse