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.
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.
Tatsuhiro Tsujikawa