magynhard/rvm-windows: Clone of RVM.io for MS Windows

Clone of RVM.io for MS Windows. Contribute to magynhard/rvm-windows development by creating an account on GitHub.As there is no rvm.io available for native windows, but only for POSIX by Cygwin, this is a reimplementation of basic rvm.io features for native MS Windows on the classic command line. It is based on the packages shipped by rubyinstaller.org. RVM 4 Windows allows you to comfortably install and manage several versions of Ruby on your Windows machine.