title: Reflection on EmberJS objects? How to find a list of property keys without knowing the keys in advance
body: <p>Is there a way to retrieve the set-at-creations properties of an EmberJS object if you don't know all your keys in advance?  </p>
  
  <p>Via the inspector I see all the object properties which appear to be stored in the meta-object's <code>values</code> hash, but I can't seem to find any methods to get it back.  For example <code>object.getProperties()</code> needs a key list, but I'm trying to create a generic object container that doesn't know what it will contain in advance, but is able to return information about itself.</p>