title: Ruby refactoring in Vim
body: <p>I'm a big fan of Resharper in Visual Studio.  It has some awesome refactoring tools, similar to what you get in Eclipse for Java.  Is there anything like this for Ruby?  Better yet, is there a plugin or something into Vim that does refactoring for Ruby code like renaming all instances of a method or variable, renaming classes sitewide, etc?</p>