Move "stdafx.h" include below system headers.

This avoid conflicting definitions of max() and min().

Fixes #21

The patch was fetched from Gnonthgol@005e527 .

src/FYBA/FYLU.cpp

@@ -4,12 +4,12 @@
 /*  Innhold: Rutiner for utvalg                                             */
 /* ======================================================================== */
 
-#include "stdafx.h"
-
 #include <ctype.h>
 #include <math.h>
 #include <locale>
 
+#include "stdafx.h"
+
 using namespace std;
 
 #define U_PARA_LEN    128     /* Max lengde av parameterstreng */