title: problem with execjs doing michael hartl tutorial on windows... ExecJS::RuntimeError in Users#index
body: <p>I'm new to ruby and rails and walking (crawling?) through the tutorial.  the second project uses scaffolding to create a user that consists of a name and email address.  when i try to view the users screen I get the following:</p>
  
  <pre><code>ExecJS::RuntimeError in Users#index
  
  Showing /home/max/rails_proj/demo_app/app/views/layouts/application.html.erb where line #6 raised:
  
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    (in /home/max/rails_proj/demo_app/app/assets/javascripts/users.js.coffee)
  Extracted source (around line #6):
  
  3: &lt;head&gt;
  4:   &lt;title&gt;DemoApp&lt;/title&gt;
  5:   &lt;%= stylesheet_link_tag    "application" %&gt;
  6:   &lt;%= javascript_include_tag "application" %&gt;
  7:   &lt;%= csrf_meta_tags %&gt;
  8: &lt;/head&gt;
  9: &lt;body&gt;
  Rails.root: /home/max/rails_proj/demo_app
  
  Application Trace | Framework Trace | Full Trace
  app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__1031573605_1065816420'
  app/controllers/users_controller.rb:7:in `index'
  </code></pre>
  
  <p>I am using windows xp, cygwin, rails 3.1.0 (i've tried the new rc1 also), ruby 1.8.7.  </p>
  
  <p>I found this error on google and there's supposedly a fix which i've tried to use (the execjs gem 1.2.9) but that doesn't seem to fix it for me.... i have tried all the fixes (to the best of my limited ruby etc ability at this point) but nothing seems to work although the error message is sometimes different - still errors on the same line.</p>
  
  <p>I've tried to uninstall and reinstall cygwin, ruby, rails etc.. to no avail so far...</p>
  
  <p>any feedback would be great!</p>