Use contact_id as reference in civicrm_stripe_customers and don't require an email address for payment

Minor changes to improve formatting and set a generic domain name

See merge request !2

Jamie McClelland authored 6 years ago and mattwire committed 6 years ago

When you select a priceset with the value 0, the form properly hides
the credit card input fields.

However, we still try to submit a credit card to stripe which results in
an error.

ensure our js code always runs first

allow multiple stripe payment processor on back end

If we wait for the event handler to kick in, other js code
might run first (like offline event registration does an ajax
call to register a participant).