document prefix parameter for newforms Form

[Thomas Güttler <hv@…>]

Hi

please tell the user the usefull prefix keyword argument
for the Form class constructor:

​http://www.djangoproject.com/documentation/newforms/

I coded more than one hour to get something like this
working. By chance I found it in the django code.

[Gary Wilson <gary.wilson@…>]

Yes, the newforms documentation is not yet complete. Patches welcome.

[Adrian Holovaty]

We're still working on the newforms documentation, so tickets like this that request documentation of specific features are more distracting than helpful.