Use ``bda.plone.checkout.interfaces.ICheckoutSettings`` adapter instead of self in ``bda.plone.checkout.browser.form.CheckoutForm`` to handle ``skip_payment`` and ``skip_payment_redirect_url``. Remove ``skip_payment`` and ``skip_payment_redirect_url`` attributes from ``bda.plone.checkout.interfaces.ICheckoutAdapter`` interface. They exist now as functions accepting data uid on ``bda.plone.checkout.interfaces.ICheckoutSettings``. Introduce ``bda.plone.checkout.interfaces.ICheckoutSettings`` interface.
update po files