title: Rake secret command not working
body: <p>When I run <code>rake secret</code> in my terminal, instead of getting a new key, i get </p>
  
  <pre><code>NoMethodError: undefined method 'reject' for #&lt;String: blah blah blah&gt;
  c:/Sites/appname/config/application.rb:10:in '&lt;module:appname&gt;'
  c:/Sites/appname/config/application.rb:9:in '&lt;top (required)&gt;'
  c:/Sites/appname/Rakefile:4:in '&lt;top (required)&gt;'
  </code></pre>
  
  <p>I've checked that those three lines are identical to the ones of a known good project.</p>
  
  <p>I'm using ruby 2.0.0
  rails 4.1.1
  I'm in my current project folder.</p>
  
  <p>When i run rake secret in my other projects, the command works, but not when I run it from this new project.</p>