Include the full content in UnparsedResultIQ

In order to prevent

<iq to='...' from='...' type='result' id='1'>
  <mynode xmlns='my:namespace' myattr='...'>
    <somenode\>
  </mynode>
</iq>

showing up as UnparsedResultIQ like this:

<iq to='...' from='...' type='result' id='1'>
  <somenode\>
</iq>

smack-core/src/main/java/org/jivesoftware/smack/util/PacketParserUtils.java

@@ -642,7 +642,7 @@ public class PacketParserUtils {
                         else if (IQ.Type.result == type){
                             // No Provider found for the IQ stanza, parse it to an UnparsedIQ instance
                             // so that the content of the IQ can be examined later on
-                            iqPacket = new UnparsedResultIQ(parseContent(parser));
+                            iqPacket = new UnparsedResultIQ(parseElement(parser));
                         }
                     }
                 }