Allow @ and : inside password.
Describe customized http error code in sample config.
Add English version of sample rc.
Merge branch 'develop', add English sample rc.
Remove MS sites in direct list.
Add rc4-md5 encryption method in sample rc.
Bump version to 0.9.3
Merge branch 'develop', version 0.9.3
Close stat file after load.
Bump version 0.9.4
Merge branch 'develop', version 0.9.4
add support to ip range and limit remote to ip address only

1. proxifier would pass ip address to proxy with "Resolve hostnames
   through proxy" turned off
2. allowing ip range like "192.168.0.0" would shorten the configuration
   file
add support for CIDR
ignore "cow" instead of "cow-proxy"
build script: use gnu-sed and build for darwin amd64 only
remove builtin sites (which are domains)
optimize hostIsIp
decrease number of limit on retry
remove PAC server
make http proxy only available for connection to port 80