adds balanced_customer_uri to payment_infos
adds initial version for form
changes to the forms now with balanced.js
adds javascript to send payment detail to balanced
fixes some of the work done to the js
starts work on controller and adds error handling
adds ability to create a customer and charge
fixes a few grammar issues
refactors the error code to be global
adds list of payments sources
tweaks small grammar issue
adds first integration test for payments.
removes now invalid tests
adds schema update after re-running all migrations