Rails rails new 时安装 i18n 远程连接问题
Gem::RemoteFetcher::FetchError: Errno::ECONNRESET: Connection reset by peer - SSL_connect (https://rubygems.org/gems/i18n-0.7.0.gem)
An error occurred while installing i18n (0.7.0), and Bundler cannot continue.
Make sure that gem install i18n -v '0.7.0' succeeds before bundling.
可能是远程连接问题，因为 wgets https://rubygems.org/gems/i18n-0.7.0.gem出错，如何 rails new 时 skip 掉这个包
