Initial stab at adding fields for check payments.
Set up check payment options on event edit page.
Merge branch 'master' into check_payments
Minor correction to attendee housing form.
Minor update to clarify required-ness of OrderEmailStep.
Set up basic confirmed working implementation of user check payment.
Tweaked check payment text.
Added basic api-ish handling of toggling payment confirmation from admin order view.
Made check_country a non-required field on the event form.

Resolves a bug that was preventing the form from ever being
submitted.
comment correction
Minor tweaks to boolean returns from uses_stripe and uses_dwolla.
Merge pull request #258 from littleweaver/check_payments

Check payments