Using to TextMate::Executor

Using TextMate::Executor is possible to run SML script that import another files.
The example below will not work if I try to run `hw0test.sml`
```sml
(* hw0provided.sml *)
(* Dan Grossman, Coursera PL, HW0 Provided Code *)
fun f(x,y) = x * y
fun double x = f(x,2)
fun triple x = f(3,x)
```

```sml
(* hw0test.sml *)
(* Dan Grossman, Coursera PL, HW0 Provided Code *)
(* Homework0 Simple Test *)
use "hw0provided.sml";
val test1 = double 17 = 34
val test2 = double 0 = 0
val test3 = triple ~4 = ~12
```