work around bizarro Diazo encoding bug

I've run into a bug

- Where ">" gets encoded to "&gt;" unless ?diazo.off=1
- for javascript loaded from this widget
- but not for the same javascript inserted directly in a template

After hunting for hours for a solution this is the best I can come up with.

Since the fix is a simple two-char I hope you'll merge this pull and relieve me from having to maintain a fork.