One-step Event Registration with Contribution Record and Confirmation/Receipt

Allow administrators / staff of an organization to record a contribution (payment) and have the confirmation receipt sent automatically when they register a participant in the "back-end" ( from the Contact View / Events tab ).

The specifications / functionality for this is exactly the same as the "New Membership" portion of CRM-2239.

Please use the field labels and form layout from the Membership form for the new section of the Event registration form (the labels differ a bit from the 2239 spec) - and include field-level "descriptions/help" with any changes needed to adapt the language for event (vs. membership).

Make sure custom fields are supported / included in the email confirmation and saved properly from the form etc.