added some simple sendmail checks and another attempt at shipping
fixed reference to number_with_precision
added code to strip params special characters and changed paypal shipping to string key
fixed mark cark to use params
payment reference to payment_status
made payment updating as simple as possible
failure is in controller, added catch
removed created email
added support for email on payment
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body
cleaned body