Present discount details at start of form
Present signup plans more clearly
Fix plan name in signup form
Use coupon when creating account
Change discount code to coupon
Disable signup button and add feedback on click
Remove free account references from plan limit view
Remove free account references from test start form account notices
Remove free account references from demo notification
Present upgrade plan names and pricing from plans config
Update webignition/php-stripe-models
Show correct discounted price and coupon details in plan summary
Update dist and test params