title: Colorize/highlight rails 3 'rake test' output
body: <p>I already use the <code>redgreen</code> gem to highlight some test output for rails 3.  I enjoy it, but I only found it because I was looking for a more specific solution, which it doesn't have.</p>
  
  <p>I'd like to see the filenames highlighted specifically.  I'd like to illustrate with an example:</p>
  
  <pre><code>  4) Error:
  test_shouldn't_be_able_to_make_duplicate_ModeratorPermission(ModeratorPermissionTest):
  NoMethodError: undefined method `users' for #&lt;ModeratorPermissionTest:0x7f13ad7ee3d0&gt;
      /test/unit/moderator_permission_test.rb:10:in `test_shouldn't_be_able_to_make_duplicate_ModeratorPermission'
  
    5) Error:
  test_*should*_be_able_to_make_duplicate_Post(PostTest):
  NoMethodError: undefined method `users' for #&lt;PostTest:0x7f13ad7f04a0&gt;
      /test/unit/post_test.rb:12:in `test_*should*_be_able_to_make_duplicate_Post'
  
    6) Error:
  test_should_be_able_to_make_a_post(PostTest):
  NoMethodError: undefined method `users' for #&lt;PostTest:0x7f13ad7f0478&gt;
      /test/unit/post_test.rb:6:in `test_should_be_able_to_make_a_post'
  </code></pre>
  
  <p>When I first glance at this in black/white, my eyes don't immediately go to any one place.  I'd like to see "PostTest" and "ModeratorPermission" highlighted.  It'd also be nice if the test name itself was highlighted.</p>
  
  <p>Does anyone know if there's a gem out there that does this already?</p>