adding jed1.x

I don't actually know that much about Jed format, but this was a quick-and-dirty way to make it work.  I imagine you'll want to clean it up.  There's one thing I'm not sure about, which I commented on below.
Would the tests pass with the current version of the Jed module in devDependencies using both `{ format: 'jed' }` and `{ format: 'jed1.x' }`?  If so, are those tests valid?