Support for recurring payments in Plone

Web Collective participated in a sprint to add support for recurring payments in PloneGetPaid and PloneFormGen.

As a result of this work, it is now easy to solicit recurring donations on your organization's Plone website. Supported payment gateways are PayPal and Authorize.net.

For a thorough discussion of the sprint's results see David Glick's blog post.

Thanks to all participants: organizer David Glick (Groundwire), Fulvio Casali (Web Collective), Chris Ewing (UW Radiology), Rob LaRubbio, Jesse Snyder (N-Power), and Alex Tokar (Web Collective).