[Moin-user] PageComment2 update for Moin 1.9?

[Thomas Waldmann]

> AttributeError: Macro instance has no attribute 'form'

macro.form is gone.

This was deprecated since quite a while and because there is not only
request.form now, but also request.args and request.values, we finally
killed it.

request.form = current POST form fields
request.args = current URL args
request.values = both mixed together

http://moinmo.in/MoinMoinTodo/Release%201.9/FormReview