Merge pull request #237 from Dmitry-Me/resolveIssue176

Resolve issue 176

tinyxml2.h

@@ -1766,7 +1766,7 @@ private:
 
 	@verbatim
 	XMLHandle docHandle( &document );
-	XMLElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).FirstChild().NextSibling().ToElement();
+	XMLElement* child2 = docHandle.FirstChildElement( "Document" ).FirstChildElement( "Element" ).FirstChildElement().NextSiblingElement();
 	if ( child2 )
 	{
 		// do something useful