* Fixed bug where billing address wouldn't show up if the base level was free, there was a seat cost, but the sponsored_accounts_at_checkout setting was not turned on.
* Fixed bug where apply_seat_cost_to_initial_payment and apply_seat_cost_to_billing_amount settings weren't working in some cases.
Merge branch 'master' of github.com:strangerstudios/pmpro-sponsored-members