title: How do I undo a gem install that messed up my Rails app?
body: <p>I installed a gem to make my URLs case-insensitive but I'm seeing a lot of broken links. Instead of going through and trying to fix them, I'd rather just undo the install I did. </p>
  
  <p>If I ran <code>gem uninstall gemname</code>, will that make my Rails app return to how it was before? </p>