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.
The tests both pass with the new version, but they don't actually test the translation engine, they just test that the output matches the gold file (i.e pl-jed*.json) and that the Jed parser doesn't choke and die.