LP1774892 stripe elements
This commit breaks some code out into separate files for easier understanding.
The Stripe form was then tweaked and repositioned to work with specific selected
transactions, invoke the last chance screen, and show the refund policy.
Signed-off-by: Jason Etheridge <jason@EquinoxInitiative.org>
Signed-off-by: John Amundson <jamundson@cwmars.org>
Signed-off-by: Dawn Dale <ddale@georgialibraries.org>
Signed-off-by: Jason Stephenson <jason@sigio.com>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>