在生产服务器上安装Rails 3应用程序（无编译器/ root访问权限）

I'm trying to set up a rails app on a production box (no compiler, no root access) that's running Mac OS X Server 10.6.6. It's got ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0], and gem 1.3.5. However I need to install a newer version of rubygems because I need Rails 3 and Bundler. I can't update the system ruby or rubygems.I'm trying to set up a rails app on a productio