Enable old-style default in "auto-insert"

Fixes #74.

ido-ubiquitous.el

@@ -351,7 +351,9 @@ You can restore these using the command `ido-ubiquitous-restore-default-override
     (disable exact "tmm-menubar")
     ;; https://github.com/DarwinAwardWinner/ido-ubiquitous/issues/58
     ;; https://github.com/mooz/js2-mode/issues/181
-    (enable exact "imenu--completion-buffer"))
+    (enable exact "imenu--completion-buffer")
+    ;; https://github.com/DarwinAwardWinner/ido-ubiquitous/issues/74
+    (enable-old exact "auto-insert"))
   "Default value of `ido-ubiquitous-function-overrides'.
 
 You can restore these using the command `ido-ubiquitous-restore-default-overrides'.")