title: background-fu pluggin unable to run ./script/generate background
body: <p>I'm following this rdoc: <a href="http://rdoc.info/projects/ncr/background-fu" rel="nofollow noreferrer">http://rdoc.info/projects/ncr/background-fu</a></p>
  
  <p>and can't run <code>./script/generate background</code> after installing background-fu as a Rails plugin: <code>./script/plugin install git://github.com/ncr/background-fu.git</code> </p>
  
  <p>I'm getting following error:</p>
  
  <pre><code>Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- job (MissingSourceFile)
  </code></pre>
  
  <p>Am I missing something?</p>