patch 8.0.0181: with cursorbind set cursor column highlighting is off

Problem:    When 'cursorbind' and 'cursorcolumn' are both on, the column
            highlignt in non-current windows is wrong.
Solution:   Add validate_cursor(). (Masanori Misono, closes #1372)
diff --git a/src/version.c b/src/version.c
index 7b576af..9a30eae 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    181,
+/**/
     180,
 /**/
     179,