patch 7.4.1766

Problem:    Building instructions for MS-Windows are outdated.
Solution:   Mention setting SDK_INCLUDE_DIR. (Ben Franklin, closes #771)  Move
            outdated instructions further down.

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1766,
 /**/
     1765,
 /**/