title: Mantle parsing array
body: <p>I am using mantle <code>framework</code> to parse <code>JSON</code> file.
  My <code>JSON</code> object Looks like this </p>
  
  <pre><code>[{
     key:value
     key:value
   },
   {
     key:value
     key:value
   } ]
  </code></pre>
  
  <p>My object is <code>array</code> that doesn't have key. 
  How could we parse this <code>array</code>? How should the <code>JSONKeyPathsByPropertyKey</code> method be implemented?  </p>
  
  <p>As mentiond on the Library description </p>
  
  <blockquote>
    <p>This method Specifies how to map property keys to different key paths
    in <code>JSON</code></p>
  </blockquote>
  
  <pre><code>+ (NSDictionary *)JSONKeyPathsByPropertyKey {
  
        return @{
          @"items" : @"",
        };
  </code></pre>
  
  <p>So how could we map <code>array</code> property to <code>JSON</code> object that doesn't have a key ?</p>