Fix JavaDoc error

Author: neutralleiter

core/src/main/java/eu/bittrade/libs/steemj/communication/WebsocketEndpoint.java

@@ -36,9 +36,9 @@ public WebsocketEndpoint(WebsocketClient websocketClient) {
     }
 
     /**
-     * @param latestResponse
-     *            the latestResponse to set
-     * @throws IOException
+     * 
+     * @return
+     * @throws SteemResponseError
      */
     protected JsonRPCResponse getLatestResponse() throws SteemResponseError {
         try {