Plone.z3cform

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* Add zope.app.testing to test dependencies so that it continues to work under
Zope 2.13.
[esteele]

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* Add a marker interface which can be used by widgets to defer any security
checks they may be doing when they are set up during traversal with the
++widgets++ namespace
[dukebody]

* Fix re-ordering of fields not in the default fieldset. Thanks to Thomas
Buchberger for the patch.
[optilude]

* Added Norwegian translation.
[regebro]

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* In the CRUD table, fix odd/even labels, which were reversed.
[limi]

* Added slots to the ``titlelessform`` macro. See ``README.txt`` for details.
[optilude, davisagli]

* Remove the distinction between wrapped and unwrapped subforms. A subform is
always wrapped by the form that contains it, and can use a Zope 3 page
template.
[davisagli]

* Fixed tests in Plone 3.
[davisagli]

* Fixed tests in Plone 4
[optilude]

* Made it possible to distinguish wrapped and unwrapped forms via the
IWrappedForm marker interface.
[optilude]

* Made it possible to use z3c.form forms without a FormWrapper in Plone 4.
[optilude]

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* A z3c.form.form.AddForm do a redirect in its render method.
So we have to render the form to see if we have a redirection.
In the case of redirection, we don't render the layout at all.
This version remove the contents method on FormWrapper,
it's now an attribute set during the FormWrapper.update.
This change fixes status message not shown because it was consumed by
the never shown rendered form.
[vincentfretin]

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* Fix security problem with the ++widget++ namespace
[optilude]

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* Don't do the rendering if there is a redirection, use the update/render
pattern for that.
See http://dev.plone.org/plone/ticket/10022 for an example how
to adapt your code, in particular if you used FormWrapper with ViewletBase.
[vincentfretin]