Ruby 2.1.3



There is an error during `post_install` -> `[ERROR] Skipping invalid directory 'C:/Ruby193'`, I think this is due to the fact that even though Ruby was updated to v2.1.3 the Ruby "devkit" has not yet been updated. The `config.yml` file that is written correctly includes the new Scoop intsall path `- C:\Users\Stephen\appdata\local\scoop\apps\ruby\2.1.3` along with the invalid `- C:/Ruby193` path. I searched through my PowerShell profile, command shell and PowerShell environment variables and found no trace of anything pointing to `C:/Ruby193` so I'm assuming this is in the existing 'devkit' config somewhere when `ruby dk.rb init` is run during `post_install`