1. Updated the refund journeys so that they use the payment Gateway Factory.
2. Improved request data going in and out of the session.
3. Show error message when Stripe SCA journey fails.
4. Update migration.
1. Removed dependencies on $gateway->id in the database which made the codebase fairly brittle in places. Use the name field of payment_gatway instead.
2. Refactored Event Checkout so that in theory it should be a lot easier to add other Omnipay gateways.
3. Removed Paypal Express as a gateway supported by default.
4. Payment Gateways are now configurable by specifying an admin and checkout template in the database directly.
5. Broke each payment option out into its own template instead of trying to handle all payment gateways in one form with funny if conditions.
6. Account settings for Payment Gateways is now dynamic based on what is in the database.
7. Added migration and updated Seeder to make sure the payment_gateways is correct on in stall and when upgrading.
I have noticed that the email CONTACT form on the event page is broken.
Can see an error from the log:
```
[2019-06-09 05:50:00] production.ERROR: syntax error, unexpected '!', expecting ',' or ')' (View: /opt/bitnami/apps/attendize/resources/views/en/Emails/messageReceived.blade.php) {"userId":1,"exception":"[object] (ErrorException(code: 0): syntax error, unexpected '!', expecting ',' or ')' (View: /opt/bitnami/apps/attendize/resources/views/en/Emails/messageReceived.blade.php) at /opt/bitnami/apps/attendize/storage/framework/views/7636d50489ed84fa18df11267aa8e9453a5a7392.php:6, Symfony\\Component\\Debug\\Exception\\FatalThrowableError(code: 0): syntax error, unexpected '!', expecting ',' or ')' at /opt/bitnami/apps/attendize/storage/framework/views/7636d50489ed84fa18df11267aa8e9453a5a7392.php:6)
```
I think this has been introduced by last template update with a wrong
syntax.
merdiano
Jeremy Quinton
Etienne Marais
Sam Bell
Wei Feng
Gautier Pelloux-Prayer