It is unreasonably hard to combine QText paragraphs with divs

Summary: Since we are interpreting paragraphs as div's, things can easily get auto-closed when you don't want it when trying to use div's explicitly for layout, to apply classes.

Not actually reported as a bug per se by Eric, but I'm going to take it as one.

We need to experiment with this a lot, to understand the failure modes -- reports of specific problem cases are welcome.

The original decision to interpret blocks as div's instead of para's dates back a zillion years, and hasn't been re-examined in a long time. We might want to see if it would make more sense to reverse that decision, with more experience in the field.