title: RaptureXML cannot get to children tags
body: <p>I am using raptureXML to extract data from my XML <code>&lt;forecast .../&gt;</code> tags.</p>
  
  <p>This is the XML</p>
  
  <pre><code>&lt;?xml version="1.0" ?&gt;
  &lt;weatherdata&gt;
  &lt;weather weatherlocationname="Chicago, IL"&gt;
  
  &lt;forecast low="67" high="86" skycodeday="34" skytextday="Mostly Sunny" date="2012-08-27" day="Monday" shortday="Mon" precip="0" /&gt;
  
  &lt;forecast low="66" high="82" skycodeday="34" skytextday="Mostly Sunny" date="2012-08-28" day="Tuesday" shortday="Tue" precip="0" /&gt;
  
  &lt;forecast low="66" high="82" skycodeday="34" skytextday="Mostly Sunny" date="2012-08-29" day="Wednesday" shortday="Wed" precip="0" /&gt;
  
  &lt;forecast low="68" high="88" skycodeday="32" skytextday="Sunny (Clear)" date="2012-08-30" day="Thursday" shortday="Thu" precip="0" /&gt;
  
  &lt;forecast low="70" high="90" skycodeday="34" skytextday="Mostly Sunny" date="2012-08-31" day="Friday" shortday="Fri" precip="0" /&gt;
  
  &lt;toolbar timewindow="60" minversion="1.0.1965.0" /&gt;
  &lt;/weather&gt;
  &lt;/weatherdata&gt;
  </code></pre>
  
  <p>I use this code for raptureXML</p>
  
  <pre><code>RXMLElement *rootXML = [RXMLElement elementFromXMLString:XML encoding:NSUTF8StringEncoding];
  
  [rootXML iterate:@"forecast" usingBlock:^(RXMLElement *element) 
      {
          NSString *high = [element attribute:@"low"];
          NSLog(@"high: %@", high);
      }];
  
      NSArray *forecast = [rootXML children:@"forecast"];
      NSLog(@"[forecast count]: %d", [forecast count]);
  </code></pre>
  
  <p>Pretty straight forward right? but the problem is that it finds NO forecast tags i.e. I get nothing for the <code>NSLog(@"high: %@", high);</code> and   <code>[forecast count]</code> is Zero. </p>
  
  <p>what did I miss?</p>