Add followings to keyfile.properties - only for production

stripe.key=sk_live_oqwyeVyRa7Cpy2XmEgbTmi8D
stripe.pubkey=pk_live_pxpYJQUaXO4aYiBIy03GQA8D

Following are required only if stripe plan and coupon details have changed. Default values set are 0001 and EAP respectively.

stripe.plan.id
stripe.coupon.id