patch 7.4.905
Problem:    Python interface can produce error "vim.message' object has no
            attribute 'isatty'".
Solution:   Add dummy isatty(), readable(), etc. (closes #464)
diff --git a/src/version.c b/src/version.c
index b818813..4f461fe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    905,
+/**/
     904,
 /**/
     903,