title: Rails which files to ignore for GIT
body: <p>I created a GIT repo, locally. I now see a bunch of files i rather ignore for GIT check-in.  This brings me to the question: is there any default .gitignore for Rails?  Any best practices?</p>
  
  <p>I think of <em>tmp</em> and <em>log</em> for sure. But are there any other files or folders i should consider?</p>