title: Accessing an aliased computed property from an Ember component
body: <p>I am passing the value of an "Ember.computed.alias()" to a component via an attribute called "disabled". The alias itself points to a computed property.</p>
  
  <p>Within the controller the alias carries the correct value returned by the computed property.  However, when I try to access the "disabled" attribute from within the component like this:</p>
  
  <pre><code>this.getAttr('disabled')
  </code></pre>
  
  <p>the value is always "undefined".</p>
  
  <p>Should I be able to pass aliases of computed properties to components?</p>
  
  <p>Any help would be appreciated.</p>
  
  <p>Thanks.</p>