Create questionnaires from HTML forms

[colbyj]

These would need to generate a database table from the HTML DOM, and POSTing the form would need to write to the database.

Maybe it would be useful to have the ability to execute custom Python code in response to a form submission -- but maybe that's something to save for another issue.

[colbyj]

I think with my recent change this is no longer necessary.

[colbyj]

Oops, closed wrong issue. I still think this is worth doing.

[colbyj]

Basically, parse the HTML for 'name' attributes. Define a DB table based on those, and handle the form submission dynamically based on the list of 'name's.