====== Useful gems ====== ^ Gem ^ Description ^ Notes ^ | rbconfig | Reflection on configuration | Builtin > 1.8.7, see http://rbjl.net/35-how-to-properly-check-for-your-ruby-interpreter-version-and-os | | railroady | GraphViz bases Classgrapher | Recommended in CS169.2x | | RedCloth | Textile | Used in typo, CS169.2x | | omniauth | SSO OAuth etc | Google, Twitter, Facebook... CS169.2x |