ARM interpreter build improvements

[Edward Nevill]

Thanks for doing this Gary. I'll test it.

Are you sure you wouldn't like an ARM board on your desk?

Regards,
Ed.

>Hi all,
>
>This patch causes the ARM interpreter's bytecodes file to be generated
>at build time rather than having a pregenerated version in the repo.
>Can someone with an ARM box please test this for me?  I've tested it as
>much as I can without one.
>
>Cheers,
>Gary