title: Why the configuration for Act-as-taggable-on is not working?
body: <p>Iam a Ruby on Rails beginner and implementing <code>ActsAsTaggable</code> functionality to my model.  I'm reading the act-as-taggable Github document, <a href="https://github.com/mbleigh/acts-as-taggable-on" rel="nofollow">https://github.com/mbleigh/acts-as-taggable-on</a>, and I want to force tags to be saved lowercase i.e.  The instruction in the Configuration section says to add the following code in configuration</p>
  
  <pre><code>ActsAsTaggable.force_lowercase = true   
  </code></pre>
  
  <p>I added the same code in my <code>$config/apllication.rb</code></p>
  
  <pre><code>module MyApp
    class Application &lt; Rails::Application
      ActsAsTaggableOn.force_lowercase = true
    end
  end
  </code></pre>
  
  <p>Now when t restart my server i get the following error:</p>
  
  <pre><code>`&lt;class:Application&gt;': uninitialized constant MyApp::Application::ActsAsTaggable (NameError)
  </code></pre>
  
  <p>Iam not able to figure out what am I doing worng. Please help me out to resolve this error.</p>