adjust to framework changes

Network/HttpRequest.cpp

@@ -145,7 +145,7 @@ Answer::Answer(const char* answer)
         if (len == 0) break;
     }
     // parse body
-    if (!reader.isEnd()) this->data = answer + reader.getLPosition();
+    if (!reader.isEnd()) this->data = answer + reader.getReadPosition();
 }
 
 const char* Answer::getContentType() const