fix travis (for real)

examples/server_datasource.c

@@ -2,6 +2,8 @@
  * This work is licensed under a Creative Commons CCZero 1.0 Universal License.
  * See http://creativecommons.org/publicdomain/zero/1.0/ for more information.
  */
+#include "open62541.h"
+
 #include <time.h>
 #include <stdio.h>
 #include <stdlib.h> 
@@ -11,8 +13,6 @@
 #include <pthread.h>
 #endif
 
-#include "open62541.h"
-
 // provided by the user, implementations available in the /examples folder
 #include "logger_stdout.h"
 #include "networklayer_tcp.h"